diff --git a/LINVAST.Imperative/Builders/Python/ANTLR/Python3Lexer.cs b/LINVAST.Imperative/Builders/Python/ANTLR/Python3Lexer.cs
new file mode 100644
index 0000000..7395ea6
--- /dev/null
+++ b/LINVAST.Imperative/Builders/Python/ANTLR/Python3Lexer.cs
@@ -0,0 +1,700 @@
+#nullable disable
+namespace LINVAST.Imperative.Builders.Python {
+//------------------------------------------------------------------------------
+// <auto-generated>
+//     This code was generated by a tool.
+//     ANTLR Version: 4.13.2
+//
+//     Changes to this file may cause incorrect behavior and will be lost if
+//     the code is regenerated.
+// </auto-generated>
+//------------------------------------------------------------------------------
+
+// Generated from Python3Lexer.g4 by ANTLR 4.13.2
+
+// Unreachable code detected
+#pragma warning disable 0162
+// The variable '...' is assigned but its value is never used
+#pragma warning disable 0219
+// Missing XML comment for publicly visible type or member '...'
+#pragma warning disable 1591
+// Ambiguous reference in cref attribute
+#pragma warning disable 419
+
+using System;
+using System.IO;
+using System.Text;
+using Antlr4.Runtime;
+using Antlr4.Runtime.Atn;
+using Antlr4.Runtime.Misc;
+using DFA = Antlr4.Runtime.Dfa.DFA;
+
+[System.CodeDom.Compiler.GeneratedCode("ANTLR", "4.13.2")]
+[System.CLSCompliant(false)]
+public partial class Python3Lexer : Python3LexerBase {
+	protected static DFA[] decisionToDFA;
+	protected static PredictionContextCache sharedContextCache = new PredictionContextCache();
+	public const int
+		INDENT=1, DEDENT=2, STRING=3, NUMBER=4, INTEGER=5, AND=6, AS=7, ASSERT=8, 
+		ASYNC=9, AWAIT=10, BREAK=11, CASE=12, CLASS=13, CONTINUE=14, DEF=15, DEL=16, 
+		ELIF=17, ELSE=18, EXCEPT=19, FALSE=20, FINALLY=21, FOR=22, FROM=23, GLOBAL=24, 
+		IF=25, IMPORT=26, IN=27, IS=28, LAMBDA=29, MATCH=30, NONE=31, NONLOCAL=32, 
+		NOT=33, OR=34, PASS=35, RAISE=36, RETURN=37, TRUE=38, TRY=39, UNDERSCORE=40, 
+		WHILE=41, WITH=42, YIELD=43, NEWLINE=44, NAME=45, STRING_LITERAL=46, BYTES_LITERAL=47, 
+		DECIMAL_INTEGER=48, OCT_INTEGER=49, HEX_INTEGER=50, BIN_INTEGER=51, FLOAT_NUMBER=52, 
+		IMAG_NUMBER=53, DOT=54, ELLIPSIS=55, STAR=56, OPEN_PAREN=57, CLOSE_PAREN=58, 
+		COMMA=59, COLON=60, SEMI_COLON=61, POWER=62, ASSIGN=63, OPEN_BRACK=64, 
+		CLOSE_BRACK=65, OR_OP=66, XOR=67, AND_OP=68, LEFT_SHIFT=69, RIGHT_SHIFT=70, 
+		ADD=71, MINUS=72, DIV=73, MOD=74, IDIV=75, NOT_OP=76, OPEN_BRACE=77, CLOSE_BRACE=78, 
+		LESS_THAN=79, GREATER_THAN=80, EQUALS=81, GT_EQ=82, LT_EQ=83, NOT_EQ_1=84, 
+		NOT_EQ_2=85, AT=86, ARROW=87, ADD_ASSIGN=88, SUB_ASSIGN=89, MULT_ASSIGN=90, 
+		AT_ASSIGN=91, DIV_ASSIGN=92, MOD_ASSIGN=93, AND_ASSIGN=94, OR_ASSIGN=95, 
+		XOR_ASSIGN=96, LEFT_SHIFT_ASSIGN=97, RIGHT_SHIFT_ASSIGN=98, POWER_ASSIGN=99, 
+		IDIV_ASSIGN=100, SKIP_=101, UNKNOWN_CHAR=102;
+	public static string[] channelNames = {
+		"DEFAULT_TOKEN_CHANNEL", "HIDDEN"
+	};
+
+	public static string[] modeNames = {
+		"DEFAULT_MODE"
+	};
+
+	public static readonly string[] ruleNames = {
+		"STRING", "NUMBER", "INTEGER", "AND", "AS", "ASSERT", "ASYNC", "AWAIT", 
+		"BREAK", "CASE", "CLASS", "CONTINUE", "DEF", "DEL", "ELIF", "ELSE", "EXCEPT", 
+		"FALSE", "FINALLY", "FOR", "FROM", "GLOBAL", "IF", "IMPORT", "IN", "IS", 
+		"LAMBDA", "MATCH", "NONE", "NONLOCAL", "NOT", "OR", "PASS", "RAISE", "RETURN", 
+		"TRUE", "TRY", "UNDERSCORE", "WHILE", "WITH", "YIELD", "NEWLINE", "NAME", 
+		"STRING_LITERAL", "BYTES_LITERAL", "DECIMAL_INTEGER", "OCT_INTEGER", "HEX_INTEGER", 
+		"BIN_INTEGER", "FLOAT_NUMBER", "IMAG_NUMBER", "DOT", "ELLIPSIS", "STAR", 
+		"OPEN_PAREN", "CLOSE_PAREN", "COMMA", "COLON", "SEMI_COLON", "POWER", 
+		"ASSIGN", "OPEN_BRACK", "CLOSE_BRACK", "OR_OP", "XOR", "AND_OP", "LEFT_SHIFT", 
+		"RIGHT_SHIFT", "ADD", "MINUS", "DIV", "MOD", "IDIV", "NOT_OP", "OPEN_BRACE", 
+		"CLOSE_BRACE", "LESS_THAN", "GREATER_THAN", "EQUALS", "GT_EQ", "LT_EQ", 
+		"NOT_EQ_1", "NOT_EQ_2", "AT", "ARROW", "ADD_ASSIGN", "SUB_ASSIGN", "MULT_ASSIGN", 
+		"AT_ASSIGN", "DIV_ASSIGN", "MOD_ASSIGN", "AND_ASSIGN", "OR_ASSIGN", "XOR_ASSIGN", 
+		"LEFT_SHIFT_ASSIGN", "RIGHT_SHIFT_ASSIGN", "POWER_ASSIGN", "IDIV_ASSIGN", 
+		"SKIP_", "UNKNOWN_CHAR", "SHORT_STRING", "LONG_STRING", "LONG_STRING_ITEM", 
+		"LONG_STRING_CHAR", "STRING_ESCAPE_SEQ", "NON_ZERO_DIGIT", "DIGIT", "OCT_DIGIT", 
+		"HEX_DIGIT", "BIN_DIGIT", "POINT_FLOAT", "EXPONENT_FLOAT", "INT_PART", 
+		"FRACTION", "EXPONENT", "SHORT_BYTES", "LONG_BYTES", "LONG_BYTES_ITEM", 
+		"SHORT_BYTES_CHAR_NO_SINGLE_QUOTE", "SHORT_BYTES_CHAR_NO_DOUBLE_QUOTE", 
+		"LONG_BYTES_CHAR", "BYTES_ESCAPE_SEQ", "SPACES", "COMMENT", "LINE_JOINING", 
+		"UNICODE_OIDS", "UNICODE_OIDC", "ID_START", "ID_CONTINUE"
+	};
+
+
+	public Python3Lexer(ICharStream input)
+	: this(input, Console.Out, Console.Error) { }
+
+	public Python3Lexer(ICharStream input, TextWriter output, TextWriter errorOutput)
+	: base(input, output, errorOutput)
+	{
+		Interpreter = new LexerATNSimulator(this, _ATN, decisionToDFA, sharedContextCache);
+	}
+
+	private static readonly string[] _LiteralNames = {
+		null, null, null, null, null, null, "'and'", "'as'", "'assert'", "'async'", 
+		"'await'", "'break'", "'case'", "'class'", "'continue'", "'def'", "'del'", 
+		"'elif'", "'else'", "'except'", "'False'", "'finally'", "'for'", "'from'", 
+		"'global'", "'if'", "'import'", "'in'", "'is'", "'lambda'", "'match'", 
+		"'None'", "'nonlocal'", "'not'", "'or'", "'pass'", "'raise'", "'return'", 
+		"'True'", "'try'", "'_'", "'while'", "'with'", "'yield'", null, null, 
+		null, null, null, null, null, null, null, null, "'.'", "'...'", "'*'", 
+		"'('", "')'", "','", "':'", "';'", "'**'", "'='", "'['", "']'", "'|'", 
+		"'^'", "'&'", "'<<'", "'>>'", "'+'", "'-'", "'/'", "'%'", "'//'", "'~'", 
+		"'{'", "'}'", "'<'", "'>'", "'=='", "'>='", "'<='", "'<>'", "'!='", "'@'", 
+		"'->'", "'+='", "'-='", "'*='", "'@='", "'/='", "'%='", "'&='", "'|='", 
+		"'^='", "'<<='", "'>>='", "'**='", "'//='"
+	};
+	private static readonly string[] _SymbolicNames = {
+		null, "INDENT", "DEDENT", "STRING", "NUMBER", "INTEGER", "AND", "AS", 
+		"ASSERT", "ASYNC", "AWAIT", "BREAK", "CASE", "CLASS", "CONTINUE", "DEF", 
+		"DEL", "ELIF", "ELSE", "EXCEPT", "FALSE", "FINALLY", "FOR", "FROM", "GLOBAL", 
+		"IF", "IMPORT", "IN", "IS", "LAMBDA", "MATCH", "NONE", "NONLOCAL", "NOT", 
+		"OR", "PASS", "RAISE", "RETURN", "TRUE", "TRY", "UNDERSCORE", "WHILE", 
+		"WITH", "YIELD", "NEWLINE", "NAME", "STRING_LITERAL", "BYTES_LITERAL", 
+		"DECIMAL_INTEGER", "OCT_INTEGER", "HEX_INTEGER", "BIN_INTEGER", "FLOAT_NUMBER", 
+		"IMAG_NUMBER", "DOT", "ELLIPSIS", "STAR", "OPEN_PAREN", "CLOSE_PAREN", 
+		"COMMA", "COLON", "SEMI_COLON", "POWER", "ASSIGN", "OPEN_BRACK", "CLOSE_BRACK", 
+		"OR_OP", "XOR", "AND_OP", "LEFT_SHIFT", "RIGHT_SHIFT", "ADD", "MINUS", 
+		"DIV", "MOD", "IDIV", "NOT_OP", "OPEN_BRACE", "CLOSE_BRACE", "LESS_THAN", 
+		"GREATER_THAN", "EQUALS", "GT_EQ", "LT_EQ", "NOT_EQ_1", "NOT_EQ_2", "AT", 
+		"ARROW", "ADD_ASSIGN", "SUB_ASSIGN", "MULT_ASSIGN", "AT_ASSIGN", "DIV_ASSIGN", 
+		"MOD_ASSIGN", "AND_ASSIGN", "OR_ASSIGN", "XOR_ASSIGN", "LEFT_SHIFT_ASSIGN", 
+		"RIGHT_SHIFT_ASSIGN", "POWER_ASSIGN", "IDIV_ASSIGN", "SKIP_", "UNKNOWN_CHAR"
+	};
+	public static readonly IVocabulary DefaultVocabulary = new Vocabulary(_LiteralNames, _SymbolicNames);
+
+	[NotNull]
+	public override IVocabulary Vocabulary
+	{
+		get
+		{
+			return DefaultVocabulary;
+		}
+	}
+
+	public override string GrammarFileName { get { return "Python3Lexer.g4"; } }
+
+	public override string[] RuleNames { get { return ruleNames; } }
+
+	public override string[] ChannelNames { get { return channelNames; } }
+
+	public override string[] ModeNames { get { return modeNames; } }
+
+	public override int[] SerializedAtn { get { return _serializedATN; } }
+
+	static Python3Lexer() {
+		decisionToDFA = new DFA[_ATN.NumberOfDecisions];
+		for (int i = 0; i < _ATN.NumberOfDecisions; i++) {
+			decisionToDFA[i] = new DFA(_ATN.GetDecisionState(i), i);
+		}
+	}
+	public override void Action(RuleContext _localctx, int ruleIndex, int actionIndex) {
+		switch (ruleIndex) {
+		case 41 : NEWLINE_action(_localctx, actionIndex); break;
+		case 54 : OPEN_PAREN_action(_localctx, actionIndex); break;
+		case 55 : CLOSE_PAREN_action(_localctx, actionIndex); break;
+		case 61 : OPEN_BRACK_action(_localctx, actionIndex); break;
+		case 62 : CLOSE_BRACK_action(_localctx, actionIndex); break;
+		case 74 : OPEN_BRACE_action(_localctx, actionIndex); break;
+		case 75 : CLOSE_BRACE_action(_localctx, actionIndex); break;
+		}
+	}
+	private void NEWLINE_action(RuleContext _localctx, int actionIndex) {
+		switch (actionIndex) {
+		case 0: this.onNewLine(); break;
+		}
+	}
+	private void OPEN_PAREN_action(RuleContext _localctx, int actionIndex) {
+		switch (actionIndex) {
+		case 1: this.openBrace(); break;
+		}
+	}
+	private void CLOSE_PAREN_action(RuleContext _localctx, int actionIndex) {
+		switch (actionIndex) {
+		case 2: this.closeBrace(); break;
+		}
+	}
+	private void OPEN_BRACK_action(RuleContext _localctx, int actionIndex) {
+		switch (actionIndex) {
+		case 3: this.openBrace(); break;
+		}
+	}
+	private void CLOSE_BRACK_action(RuleContext _localctx, int actionIndex) {
+		switch (actionIndex) {
+		case 4: this.closeBrace(); break;
+		}
+	}
+	private void OPEN_BRACE_action(RuleContext _localctx, int actionIndex) {
+		switch (actionIndex) {
+		case 5: this.openBrace(); break;
+		}
+	}
+	private void CLOSE_BRACE_action(RuleContext _localctx, int actionIndex) {
+		switch (actionIndex) {
+		case 6: this.closeBrace(); break;
+		}
+	}
+	public override bool Sempred(RuleContext _localctx, int ruleIndex, int predIndex) {
+		switch (ruleIndex) {
+		case 41 : return NEWLINE_sempred(_localctx, predIndex);
+		}
+		return true;
+	}
+	private bool NEWLINE_sempred(RuleContext _localctx, int predIndex) {
+		switch (predIndex) {
+		case 0: return this.atStartOfInput();
+		}
+		return true;
+	}
+
+	private static int[] _serializedATN = {
+		4,0,102,910,6,-1,2,0,7,0,2,1,7,1,2,2,7,2,2,3,7,3,2,4,7,4,2,5,7,5,2,6,7,
+		6,2,7,7,7,2,8,7,8,2,9,7,9,2,10,7,10,2,11,7,11,2,12,7,12,2,13,7,13,2,14,
+		7,14,2,15,7,15,2,16,7,16,2,17,7,17,2,18,7,18,2,19,7,19,2,20,7,20,2,21,
+		7,21,2,22,7,22,2,23,7,23,2,24,7,24,2,25,7,25,2,26,7,26,2,27,7,27,2,28,
+		7,28,2,29,7,29,2,30,7,30,2,31,7,31,2,32,7,32,2,33,7,33,2,34,7,34,2,35,
+		7,35,2,36,7,36,2,37,7,37,2,38,7,38,2,39,7,39,2,40,7,40,2,41,7,41,2,42,
+		7,42,2,43,7,43,2,44,7,44,2,45,7,45,2,46,7,46,2,47,7,47,2,48,7,48,2,49,
+		7,49,2,50,7,50,2,51,7,51,2,52,7,52,2,53,7,53,2,54,7,54,2,55,7,55,2,56,
+		7,56,2,57,7,57,2,58,7,58,2,59,7,59,2,60,7,60,2,61,7,61,2,62,7,62,2,63,
+		7,63,2,64,7,64,2,65,7,65,2,66,7,66,2,67,7,67,2,68,7,68,2,69,7,69,2,70,
+		7,70,2,71,7,71,2,72,7,72,2,73,7,73,2,74,7,74,2,75,7,75,2,76,7,76,2,77,
+		7,77,2,78,7,78,2,79,7,79,2,80,7,80,2,81,7,81,2,82,7,82,2,83,7,83,2,84,
+		7,84,2,85,7,85,2,86,7,86,2,87,7,87,2,88,7,88,2,89,7,89,2,90,7,90,2,91,
+		7,91,2,92,7,92,2,93,7,93,2,94,7,94,2,95,7,95,2,96,7,96,2,97,7,97,2,98,
+		7,98,2,99,7,99,2,100,7,100,2,101,7,101,2,102,7,102,2,103,7,103,2,104,7,
+		104,2,105,7,105,2,106,7,106,2,107,7,107,2,108,7,108,2,109,7,109,2,110,
+		7,110,2,111,7,111,2,112,7,112,2,113,7,113,2,114,7,114,2,115,7,115,2,116,
+		7,116,2,117,7,117,2,118,7,118,2,119,7,119,2,120,7,120,2,121,7,121,2,122,
+		7,122,2,123,7,123,2,124,7,124,2,125,7,125,2,126,7,126,2,127,7,127,2,128,
+		7,128,1,0,1,0,3,0,262,8,0,1,1,1,1,1,1,3,1,267,8,1,1,2,1,2,1,2,1,2,3,2,
+		273,8,2,1,3,1,3,1,3,1,3,1,4,1,4,1,4,1,5,1,5,1,5,1,5,1,5,1,5,1,5,1,6,1,
+		6,1,6,1,6,1,6,1,6,1,7,1,7,1,7,1,7,1,7,1,7,1,8,1,8,1,8,1,8,1,8,1,8,1,9,
+		1,9,1,9,1,9,1,9,1,10,1,10,1,10,1,10,1,10,1,10,1,11,1,11,1,11,1,11,1,11,
+		1,11,1,11,1,11,1,11,1,12,1,12,1,12,1,12,1,13,1,13,1,13,1,13,1,14,1,14,
+		1,14,1,14,1,14,1,15,1,15,1,15,1,15,1,15,1,16,1,16,1,16,1,16,1,16,1,16,
+		1,16,1,17,1,17,1,17,1,17,1,17,1,17,1,18,1,18,1,18,1,18,1,18,1,18,1,18,
+		1,18,1,19,1,19,1,19,1,19,1,20,1,20,1,20,1,20,1,20,1,21,1,21,1,21,1,21,
+		1,21,1,21,1,21,1,22,1,22,1,22,1,23,1,23,1,23,1,23,1,23,1,23,1,23,1,24,
+		1,24,1,24,1,25,1,25,1,25,1,26,1,26,1,26,1,26,1,26,1,26,1,26,1,27,1,27,
+		1,27,1,27,1,27,1,27,1,28,1,28,1,28,1,28,1,28,1,29,1,29,1,29,1,29,1,29,
+		1,29,1,29,1,29,1,29,1,30,1,30,1,30,1,30,1,31,1,31,1,31,1,32,1,32,1,32,
+		1,32,1,32,1,33,1,33,1,33,1,33,1,33,1,33,1,34,1,34,1,34,1,34,1,34,1,34,
+		1,34,1,35,1,35,1,35,1,35,1,35,1,36,1,36,1,36,1,36,1,37,1,37,1,38,1,38,
+		1,38,1,38,1,38,1,38,1,39,1,39,1,39,1,39,1,39,1,40,1,40,1,40,1,40,1,40,
+		1,40,1,41,1,41,1,41,3,41,481,8,41,1,41,1,41,3,41,485,8,41,1,41,3,41,488,
+		8,41,3,41,490,8,41,1,41,1,41,1,42,1,42,5,42,496,8,42,10,42,12,42,499,9,
+		42,1,43,1,43,1,43,1,43,1,43,3,43,506,8,43,1,43,1,43,3,43,510,8,43,1,44,
+		1,44,1,44,1,44,1,44,3,44,517,8,44,1,44,1,44,3,44,521,8,44,1,45,1,45,5,
+		45,525,8,45,10,45,12,45,528,9,45,1,45,4,45,531,8,45,11,45,12,45,532,3,
+		45,535,8,45,1,46,1,46,1,46,4,46,540,8,46,11,46,12,46,541,1,47,1,47,1,47,
+		4,47,547,8,47,11,47,12,47,548,1,48,1,48,1,48,4,48,554,8,48,11,48,12,48,
+		555,1,49,1,49,3,49,560,8,49,1,50,1,50,3,50,564,8,50,1,50,1,50,1,51,1,51,
+		1,52,1,52,1,52,1,52,1,53,1,53,1,54,1,54,1,54,1,55,1,55,1,55,1,56,1,56,
+		1,57,1,57,1,58,1,58,1,59,1,59,1,59,1,60,1,60,1,61,1,61,1,61,1,62,1,62,
+		1,62,1,63,1,63,1,64,1,64,1,65,1,65,1,66,1,66,1,66,1,67,1,67,1,67,1,68,
+		1,68,1,69,1,69,1,70,1,70,1,71,1,71,1,72,1,72,1,72,1,73,1,73,1,74,1,74,
+		1,74,1,75,1,75,1,75,1,76,1,76,1,77,1,77,1,78,1,78,1,78,1,79,1,79,1,79,
+		1,80,1,80,1,80,1,81,1,81,1,81,1,82,1,82,1,82,1,83,1,83,1,84,1,84,1,84,
+		1,85,1,85,1,85,1,86,1,86,1,86,1,87,1,87,1,87,1,88,1,88,1,88,1,89,1,89,
+		1,89,1,90,1,90,1,90,1,91,1,91,1,91,1,92,1,92,1,92,1,93,1,93,1,93,1,94,
+		1,94,1,94,1,94,1,95,1,95,1,95,1,95,1,96,1,96,1,96,1,96,1,97,1,97,1,97,
+		1,97,1,98,1,98,1,98,3,98,700,8,98,1,98,1,98,1,99,1,99,1,100,1,100,1,100,
+		5,100,709,8,100,10,100,12,100,712,9,100,1,100,1,100,1,100,1,100,5,100,
+		718,8,100,10,100,12,100,721,9,100,1,100,3,100,724,8,100,1,101,1,101,1,
+		101,1,101,1,101,5,101,731,8,101,10,101,12,101,734,9,101,1,101,1,101,1,
+		101,1,101,1,101,1,101,1,101,1,101,5,101,744,8,101,10,101,12,101,747,9,
+		101,1,101,1,101,1,101,3,101,752,8,101,1,102,1,102,3,102,756,8,102,1,103,
+		1,103,1,104,1,104,1,104,1,104,3,104,764,8,104,1,105,1,105,1,106,1,106,
+		1,107,1,107,1,108,1,108,1,109,1,109,1,110,3,110,777,8,110,1,110,1,110,
+		1,110,1,110,3,110,783,8,110,1,111,1,111,3,111,787,8,111,1,111,1,111,1,
+		112,4,112,792,8,112,11,112,12,112,793,1,113,1,113,4,113,798,8,113,11,113,
+		12,113,799,1,114,1,114,3,114,804,8,114,1,114,4,114,807,8,114,11,114,12,
+		114,808,1,115,1,115,1,115,5,115,814,8,115,10,115,12,115,817,9,115,1,115,
+		1,115,1,115,1,115,5,115,823,8,115,10,115,12,115,826,9,115,1,115,3,115,
+		829,8,115,1,116,1,116,1,116,1,116,1,116,5,116,836,8,116,10,116,12,116,
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+		7,6,0,0,566,102,1,0,0,0,567,568,5,46,0,0,568,104,1,0,0,0,569,570,5,46,
+		0,0,570,571,5,46,0,0,571,572,5,46,0,0,572,106,1,0,0,0,573,574,5,42,0,0,
+		574,108,1,0,0,0,575,576,5,40,0,0,576,577,6,54,1,0,577,110,1,0,0,0,578,
+		579,5,41,0,0,579,580,6,55,2,0,580,112,1,0,0,0,581,582,5,44,0,0,582,114,
+		1,0,0,0,583,584,5,58,0,0,584,116,1,0,0,0,585,586,5,59,0,0,586,118,1,0,
+		0,0,587,588,5,42,0,0,588,589,5,42,0,0,589,120,1,0,0,0,590,591,5,61,0,0,
+		591,122,1,0,0,0,592,593,5,91,0,0,593,594,6,61,3,0,594,124,1,0,0,0,595,
+		596,5,93,0,0,596,597,6,62,4,0,597,126,1,0,0,0,598,599,5,124,0,0,599,128,
+		1,0,0,0,600,601,5,94,0,0,601,130,1,0,0,0,602,603,5,38,0,0,603,132,1,0,
+		0,0,604,605,5,60,0,0,605,606,5,60,0,0,606,134,1,0,0,0,607,608,5,62,0,0,
+		608,609,5,62,0,0,609,136,1,0,0,0,610,611,5,43,0,0,611,138,1,0,0,0,612,
+		613,5,45,0,0,613,140,1,0,0,0,614,615,5,47,0,0,615,142,1,0,0,0,616,617,
+		5,37,0,0,617,144,1,0,0,0,618,619,5,47,0,0,619,620,5,47,0,0,620,146,1,0,
+		0,0,621,622,5,126,0,0,622,148,1,0,0,0,623,624,5,123,0,0,624,625,6,74,5,
+		0,625,150,1,0,0,0,626,627,5,125,0,0,627,628,6,75,6,0,628,152,1,0,0,0,629,
+		630,5,60,0,0,630,154,1,0,0,0,631,632,5,62,0,0,632,156,1,0,0,0,633,634,
+		5,61,0,0,634,635,5,61,0,0,635,158,1,0,0,0,636,637,5,62,0,0,637,638,5,61,
+		0,0,638,160,1,0,0,0,639,640,5,60,0,0,640,641,5,61,0,0,641,162,1,0,0,0,
+		642,643,5,60,0,0,643,644,5,62,0,0,644,164,1,0,0,0,645,646,5,33,0,0,646,
+		647,5,61,0,0,647,166,1,0,0,0,648,649,5,64,0,0,649,168,1,0,0,0,650,651,
+		5,45,0,0,651,652,5,62,0,0,652,170,1,0,0,0,653,654,5,43,0,0,654,655,5,61,
+		0,0,655,172,1,0,0,0,656,657,5,45,0,0,657,658,5,61,0,0,658,174,1,0,0,0,
+		659,660,5,42,0,0,660,661,5,61,0,0,661,176,1,0,0,0,662,663,5,64,0,0,663,
+		664,5,61,0,0,664,178,1,0,0,0,665,666,5,47,0,0,666,667,5,61,0,0,667,180,
+		1,0,0,0,668,669,5,37,0,0,669,670,5,61,0,0,670,182,1,0,0,0,671,672,5,38,
+		0,0,672,673,5,61,0,0,673,184,1,0,0,0,674,675,5,124,0,0,675,676,5,61,0,
+		0,676,186,1,0,0,0,677,678,5,94,0,0,678,679,5,61,0,0,679,188,1,0,0,0,680,
+		681,5,60,0,0,681,682,5,60,0,0,682,683,5,61,0,0,683,190,1,0,0,0,684,685,
+		5,62,0,0,685,686,5,62,0,0,686,687,5,61,0,0,687,192,1,0,0,0,688,689,5,42,
+		0,0,689,690,5,42,0,0,690,691,5,61,0,0,691,194,1,0,0,0,692,693,5,47,0,0,
+		693,694,5,47,0,0,694,695,5,61,0,0,695,196,1,0,0,0,696,700,3,245,122,0,
+		697,700,3,247,123,0,698,700,3,249,124,0,699,696,1,0,0,0,699,697,1,0,0,
+		0,699,698,1,0,0,0,700,701,1,0,0,0,701,702,6,98,7,0,702,198,1,0,0,0,703,
+		704,9,0,0,0,704,200,1,0,0,0,705,710,5,39,0,0,706,709,3,209,104,0,707,709,
+		8,7,0,0,708,706,1,0,0,0,708,707,1,0,0,0,709,712,1,0,0,0,710,708,1,0,0,
+		0,710,711,1,0,0,0,711,713,1,0,0,0,712,710,1,0,0,0,713,724,5,39,0,0,714,
+		719,5,34,0,0,715,718,3,209,104,0,716,718,8,8,0,0,717,715,1,0,0,0,717,716,
+		1,0,0,0,718,721,1,0,0,0,719,717,1,0,0,0,719,720,1,0,0,0,720,722,1,0,0,
+		0,721,719,1,0,0,0,722,724,5,34,0,0,723,705,1,0,0,0,723,714,1,0,0,0,724,
+		202,1,0,0,0,725,726,5,39,0,0,726,727,5,39,0,0,727,728,5,39,0,0,728,732,
+		1,0,0,0,729,731,3,205,102,0,730,729,1,0,0,0,731,734,1,0,0,0,732,733,1,
+		0,0,0,732,730,1,0,0,0,733,735,1,0,0,0,734,732,1,0,0,0,735,736,5,39,0,0,
+		736,737,5,39,0,0,737,752,5,39,0,0,738,739,5,34,0,0,739,740,5,34,0,0,740,
+		741,5,34,0,0,741,745,1,0,0,0,742,744,3,205,102,0,743,742,1,0,0,0,744,747,
+		1,0,0,0,745,746,1,0,0,0,745,743,1,0,0,0,746,748,1,0,0,0,747,745,1,0,0,
+		0,748,749,5,34,0,0,749,750,5,34,0,0,750,752,5,34,0,0,751,725,1,0,0,0,751,
+		738,1,0,0,0,752,204,1,0,0,0,753,756,3,207,103,0,754,756,3,209,104,0,755,
+		753,1,0,0,0,755,754,1,0,0,0,756,206,1,0,0,0,757,758,8,9,0,0,758,208,1,
+		0,0,0,759,760,5,92,0,0,760,764,9,0,0,0,761,762,5,92,0,0,762,764,3,83,41,
+		0,763,759,1,0,0,0,763,761,1,0,0,0,764,210,1,0,0,0,765,766,7,10,0,0,766,
+		212,1,0,0,0,767,768,7,11,0,0,768,214,1,0,0,0,769,770,7,12,0,0,770,216,
+		1,0,0,0,771,772,7,13,0,0,772,218,1,0,0,0,773,774,7,14,0,0,774,220,1,0,
+		0,0,775,777,3,225,112,0,776,775,1,0,0,0,776,777,1,0,0,0,777,778,1,0,0,
+		0,778,783,3,227,113,0,779,780,3,225,112,0,780,781,5,46,0,0,781,783,1,0,
+		0,0,782,776,1,0,0,0,782,779,1,0,0,0,783,222,1,0,0,0,784,787,3,225,112,
+		0,785,787,3,221,110,0,786,784,1,0,0,0,786,785,1,0,0,0,787,788,1,0,0,0,
+		788,789,3,229,114,0,789,224,1,0,0,0,790,792,3,213,106,0,791,790,1,0,0,
+		0,792,793,1,0,0,0,793,791,1,0,0,0,793,794,1,0,0,0,794,226,1,0,0,0,795,
+		797,5,46,0,0,796,798,3,213,106,0,797,796,1,0,0,0,798,799,1,0,0,0,799,797,
+		1,0,0,0,799,800,1,0,0,0,800,228,1,0,0,0,801,803,7,15,0,0,802,804,7,16,
+		0,0,803,802,1,0,0,0,803,804,1,0,0,0,804,806,1,0,0,0,805,807,3,213,106,
+		0,806,805,1,0,0,0,807,808,1,0,0,0,808,806,1,0,0,0,808,809,1,0,0,0,809,
+		230,1,0,0,0,810,815,5,39,0,0,811,814,3,237,118,0,812,814,3,243,121,0,813,
+		811,1,0,0,0,813,812,1,0,0,0,814,817,1,0,0,0,815,813,1,0,0,0,815,816,1,
+		0,0,0,816,818,1,0,0,0,817,815,1,0,0,0,818,829,5,39,0,0,819,824,5,34,0,
+		0,820,823,3,239,119,0,821,823,3,243,121,0,822,820,1,0,0,0,822,821,1,0,
+		0,0,823,826,1,0,0,0,824,822,1,0,0,0,824,825,1,0,0,0,825,827,1,0,0,0,826,
+		824,1,0,0,0,827,829,5,34,0,0,828,810,1,0,0,0,828,819,1,0,0,0,829,232,1,
+		0,0,0,830,831,5,39,0,0,831,832,5,39,0,0,832,833,5,39,0,0,833,837,1,0,0,
+		0,834,836,3,235,117,0,835,834,1,0,0,0,836,839,1,0,0,0,837,838,1,0,0,0,
+		837,835,1,0,0,0,838,840,1,0,0,0,839,837,1,0,0,0,840,841,5,39,0,0,841,842,
+		5,39,0,0,842,857,5,39,0,0,843,844,5,34,0,0,844,845,5,34,0,0,845,846,5,
+		34,0,0,846,850,1,0,0,0,847,849,3,235,117,0,848,847,1,0,0,0,849,852,1,0,
+		0,0,850,851,1,0,0,0,850,848,1,0,0,0,851,853,1,0,0,0,852,850,1,0,0,0,853,
+		854,5,34,0,0,854,855,5,34,0,0,855,857,5,34,0,0,856,830,1,0,0,0,856,843,
+		1,0,0,0,857,234,1,0,0,0,858,861,3,241,120,0,859,861,3,243,121,0,860,858,
+		1,0,0,0,860,859,1,0,0,0,861,236,1,0,0,0,862,864,7,17,0,0,863,862,1,0,0,
+		0,864,238,1,0,0,0,865,867,7,18,0,0,866,865,1,0,0,0,867,240,1,0,0,0,868,
+		870,7,19,0,0,869,868,1,0,0,0,870,242,1,0,0,0,871,872,5,92,0,0,872,873,
+		7,20,0,0,873,244,1,0,0,0,874,876,7,21,0,0,875,874,1,0,0,0,876,877,1,0,
+		0,0,877,875,1,0,0,0,877,878,1,0,0,0,878,246,1,0,0,0,879,883,5,35,0,0,880,
+		882,8,22,0,0,881,880,1,0,0,0,882,885,1,0,0,0,883,881,1,0,0,0,883,884,1,
+		0,0,0,884,248,1,0,0,0,885,883,1,0,0,0,886,888,5,92,0,0,887,889,3,245,122,
+		0,888,887,1,0,0,0,888,889,1,0,0,0,889,895,1,0,0,0,890,892,5,13,0,0,891,
+		890,1,0,0,0,891,892,1,0,0,0,892,893,1,0,0,0,893,896,5,10,0,0,894,896,2,
+		12,13,0,895,891,1,0,0,0,895,894,1,0,0,0,896,250,1,0,0,0,897,898,7,23,0,
+		0,898,252,1,0,0,0,899,900,7,24,0,0,900,254,1,0,0,0,901,904,7,25,0,0,902,
+		904,3,251,125,0,903,901,1,0,0,0,903,902,1,0,0,0,904,256,1,0,0,0,905,909,
+		3,255,127,0,906,909,7,26,0,0,907,909,3,253,126,0,908,905,1,0,0,0,908,906,
+		1,0,0,0,908,907,1,0,0,0,909,258,1,0,0,0,58,0,261,266,272,480,484,487,489,
+		497,505,509,516,520,526,532,534,541,548,555,559,563,699,708,710,717,719,
+		723,732,745,751,755,763,776,782,786,793,799,803,808,813,815,822,824,828,
+		837,850,856,860,863,866,869,877,883,888,891,895,903,908,8,1,41,0,1,54,
+		1,1,55,2,1,61,3,1,62,4,1,74,5,1,75,6,6,0,0
+	};
+
+	public static readonly ATN _ATN =
+		new ATNDeserializer().Deserialize(_serializedATN);
+
+
+}
+
+}
diff --git a/LINVAST.Imperative/Builders/Python/ANTLR/Python3Lexer.g4 b/LINVAST.Imperative/Builders/Python/ANTLR/Python3Lexer.g4
new file mode 100644
index 0000000..8b36564
--- /dev/null
+++ b/LINVAST.Imperative/Builders/Python/ANTLR/Python3Lexer.g4
@@ -0,0 +1,313 @@
+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2014 by Bart Kiers
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Project      : python3-parser; an ANTLR4 grammar for Python 3
+ *                https://github.com/bkiers/python3-parser
+ * Developed by : Bart Kiers, bart@big-o.nl
+ */
+
+// $antlr-format alignTrailingComments true, columnLimit 150, maxEmptyLinesToKeep 1, reflowComments false, useTab false
+// $antlr-format allowShortRulesOnASingleLine true, allowShortBlocksOnASingleLine true, minEmptyLines 0, alignSemicolons ownLine
+// $antlr-format alignColons trailing, singleLineOverrulesHangingColon true, alignLexerCommands true, alignLabels true, alignTrailers true
+
+lexer grammar Python3Lexer;
+
+// All comments that start with "///" are copy-pasted from
+// The Python Language Reference
+
+tokens {
+    INDENT,
+    DEDENT
+}
+
+options {
+    superClass = Python3LexerBase;
+}
+
+// Insert here @header for C++ lexer.
+
+/*
+ * lexer rules
+ */
+
+STRING: STRING_LITERAL | BYTES_LITERAL;
+
+NUMBER: INTEGER | FLOAT_NUMBER | IMAG_NUMBER;
+
+INTEGER: DECIMAL_INTEGER | OCT_INTEGER | HEX_INTEGER | BIN_INTEGER;
+
+AND        : 'and';
+AS         : 'as';
+ASSERT     : 'assert';
+ASYNC      : 'async';
+AWAIT      : 'await';
+BREAK      : 'break';
+CASE       : 'case';
+CLASS      : 'class';
+CONTINUE   : 'continue';
+DEF        : 'def';
+DEL        : 'del';
+ELIF       : 'elif';
+ELSE       : 'else';
+EXCEPT     : 'except';
+FALSE      : 'False';
+FINALLY    : 'finally';
+FOR        : 'for';
+FROM       : 'from';
+GLOBAL     : 'global';
+IF         : 'if';
+IMPORT     : 'import';
+IN         : 'in';
+IS         : 'is';
+LAMBDA     : 'lambda';
+MATCH      : 'match';
+NONE       : 'None';
+NONLOCAL   : 'nonlocal';
+NOT        : 'not';
+OR         : 'or';
+PASS       : 'pass';
+RAISE      : 'raise';
+RETURN     : 'return';
+TRUE       : 'True';
+TRY        : 'try';
+UNDERSCORE : '_';
+WHILE      : 'while';
+WITH       : 'with';
+YIELD      : 'yield';
+
+NEWLINE: ({this.atStartOfInput()}? SPACES | ( '\r'? '\n' | '\r' | '\f') SPACES?) {this.onNewLine();};
+
+/// identifier   ::=  id_start id_continue*
+NAME: ID_START ID_CONTINUE*;
+
+/// stringliteral   ::=  [stringprefix](shortstring | longstring)
+/// stringprefix    ::=  "r" | "u" | "R" | "U" | "f" | "F"
+///                      | "fr" | "Fr" | "fR" | "FR" | "rf" | "rF" | "Rf" | "RF"
+STRING_LITERAL: ( [rR] | [uU] | [fF] | ( [fF] [rR]) | ( [rR] [fF]))? ( SHORT_STRING | LONG_STRING);
+
+/// bytesliteral   ::=  bytesprefix(shortbytes | longbytes)
+/// bytesprefix    ::=  "b" | "B" | "br" | "Br" | "bR" | "BR" | "rb" | "rB" | "Rb" | "RB"
+BYTES_LITERAL: ( [bB] | ( [bB] [rR]) | ( [rR] [bB])) ( SHORT_BYTES | LONG_BYTES);
+
+/// decimalinteger ::=  nonzerodigit digit* | "0"+
+DECIMAL_INTEGER: NON_ZERO_DIGIT DIGIT* | '0'+;
+
+/// octinteger     ::=  "0" ("o" | "O") octdigit+
+OCT_INTEGER: '0' [oO] OCT_DIGIT+;
+
+/// hexinteger     ::=  "0" ("x" | "X") hexdigit+
+HEX_INTEGER: '0' [xX] HEX_DIGIT+;
+
+/// bininteger     ::=  "0" ("b" | "B") bindigit+
+BIN_INTEGER: '0' [bB] BIN_DIGIT+;
+
+/// floatnumber   ::=  pointfloat | exponentfloat
+FLOAT_NUMBER: POINT_FLOAT | EXPONENT_FLOAT;
+
+/// imagnumber ::=  (floatnumber | intpart) ("j" | "J")
+IMAG_NUMBER: ( FLOAT_NUMBER | INT_PART) [jJ];
+
+DOT                : '.';
+ELLIPSIS           : '...';
+STAR               : '*';
+OPEN_PAREN         : '(' {this.openBrace();};
+CLOSE_PAREN        : ')' {this.closeBrace();};
+COMMA              : ',';
+COLON              : ':';
+SEMI_COLON         : ';';
+POWER              : '**';
+ASSIGN             : '=';
+OPEN_BRACK         : '[' {this.openBrace();};
+CLOSE_BRACK        : ']' {this.closeBrace();};
+OR_OP              : '|';
+XOR                : '^';
+AND_OP             : '&';
+LEFT_SHIFT         : '<<';
+RIGHT_SHIFT        : '>>';
+ADD                : '+';
+MINUS              : '-';
+DIV                : '/';
+MOD                : '%';
+IDIV               : '//';
+NOT_OP             : '~';
+OPEN_BRACE         : '{' {this.openBrace();};
+CLOSE_BRACE        : '}' {this.closeBrace();};
+LESS_THAN          : '<';
+GREATER_THAN       : '>';
+EQUALS             : '==';
+GT_EQ              : '>=';
+LT_EQ              : '<=';
+NOT_EQ_1           : '<>';
+NOT_EQ_2           : '!=';
+AT                 : '@';
+ARROW              : '->';
+ADD_ASSIGN         : '+=';
+SUB_ASSIGN         : '-=';
+MULT_ASSIGN        : '*=';
+AT_ASSIGN          : '@=';
+DIV_ASSIGN         : '/=';
+MOD_ASSIGN         : '%=';
+AND_ASSIGN         : '&=';
+OR_ASSIGN          : '|=';
+XOR_ASSIGN         : '^=';
+LEFT_SHIFT_ASSIGN  : '<<=';
+RIGHT_SHIFT_ASSIGN : '>>=';
+POWER_ASSIGN       : '**=';
+IDIV_ASSIGN        : '//=';
+
+SKIP_: ( SPACES | COMMENT | LINE_JOINING) -> skip;
+
+UNKNOWN_CHAR: .;
+
+/*
+ * fragments
+ */
+
+/// shortstring     ::=  "'" shortstringitem* "'" | '"' shortstringitem* '"'
+/// shortstringitem ::=  shortstringchar | stringescapeseq
+/// shortstringchar ::=  <any source character except "\" or newline or the quote>
+fragment SHORT_STRING:
+    '\'' (STRING_ESCAPE_SEQ | ~[\\\r\n\f'])* '\''
+    | '"' ( STRING_ESCAPE_SEQ | ~[\\\r\n\f"])* '"'
+;
+/// longstring      ::=  "'''" longstringitem* "'''" | '"""' longstringitem* '"""'
+fragment LONG_STRING: '\'\'\'' LONG_STRING_ITEM*? '\'\'\'' | '"""' LONG_STRING_ITEM*? '"""';
+
+/// longstringitem  ::=  longstringchar | stringescapeseq
+fragment LONG_STRING_ITEM: LONG_STRING_CHAR | STRING_ESCAPE_SEQ;
+
+/// longstringchar  ::=  <any source character except "\">
+fragment LONG_STRING_CHAR: ~'\\';
+
+/// stringescapeseq ::=  "\" <any source character>
+fragment STRING_ESCAPE_SEQ: '\\' . | '\\' NEWLINE;
+
+/// nonzerodigit   ::=  "1"..."9"
+fragment NON_ZERO_DIGIT: [1-9];
+
+/// digit          ::=  "0"..."9"
+fragment DIGIT: [0-9];
+
+/// octdigit       ::=  "0"..."7"
+fragment OCT_DIGIT: [0-7];
+
+/// hexdigit       ::=  digit | "a"..."f" | "A"..."F"
+fragment HEX_DIGIT: [0-9a-fA-F];
+
+/// bindigit       ::=  "0" | "1"
+fragment BIN_DIGIT: [01];
+
+/// pointfloat    ::=  [intpart] fraction | intpart "."
+fragment POINT_FLOAT: INT_PART? FRACTION | INT_PART '.';
+
+/// exponentfloat ::=  (intpart | pointfloat) exponent
+fragment EXPONENT_FLOAT: ( INT_PART | POINT_FLOAT) EXPONENT;
+
+/// intpart       ::=  digit+
+fragment INT_PART: DIGIT+;
+
+/// fraction      ::=  "." digit+
+fragment FRACTION: '.' DIGIT+;
+
+/// exponent      ::=  ("e" | "E") ["+" | "-"] digit+
+fragment EXPONENT: [eE] [+-]? DIGIT+;
+
+/// shortbytes     ::=  "'" shortbytesitem* "'" | '"' shortbytesitem* '"'
+/// shortbytesitem ::=  shortbyteschar | bytesescapeseq
+fragment SHORT_BYTES:
+    '\'' (SHORT_BYTES_CHAR_NO_SINGLE_QUOTE | BYTES_ESCAPE_SEQ)* '\''
+    | '"' ( SHORT_BYTES_CHAR_NO_DOUBLE_QUOTE | BYTES_ESCAPE_SEQ)* '"'
+;
+
+/// longbytes      ::=  "'''" longbytesitem* "'''" | '"""' longbytesitem* '"""'
+fragment LONG_BYTES: '\'\'\'' LONG_BYTES_ITEM*? '\'\'\'' | '"""' LONG_BYTES_ITEM*? '"""';
+
+/// longbytesitem  ::=  longbyteschar | bytesescapeseq
+fragment LONG_BYTES_ITEM: LONG_BYTES_CHAR | BYTES_ESCAPE_SEQ;
+
+/// shortbyteschar ::=  <any ASCII character except "\" or newline or the quote>
+fragment SHORT_BYTES_CHAR_NO_SINGLE_QUOTE:
+    [\u0000-\u0009]
+    | [\u000B-\u000C]
+    | [\u000E-\u0026]
+    | [\u0028-\u005B]
+    | [\u005D-\u007F]
+;
+
+fragment SHORT_BYTES_CHAR_NO_DOUBLE_QUOTE:
+    [\u0000-\u0009]
+    | [\u000B-\u000C]
+    | [\u000E-\u0021]
+    | [\u0023-\u005B]
+    | [\u005D-\u007F]
+;
+
+/// longbyteschar  ::=  <any ASCII character except "\">
+fragment LONG_BYTES_CHAR: [\u0000-\u005B] | [\u005D-\u007F];
+
+/// bytesescapeseq ::=  "\" <any ASCII character>
+fragment BYTES_ESCAPE_SEQ: '\\' [\u0000-\u007F];
+
+fragment SPACES: [ \t]+;
+
+fragment COMMENT: '#' ~[\r\n\f]*;
+
+fragment LINE_JOINING: '\\' SPACES? ( '\r'? '\n' | '\r' | '\f');
+
+// TODO: ANTLR seems lack of some Unicode property support...
+//$ curl https://www.unicode.org/Public/13.0.0/ucd/PropList.txt | grep Other_ID_
+//1885..1886    ; Other_ID_Start # Mn   [2] MONGOLIAN LETTER ALI GALI BALUDA..MONGOLIAN LETTER ALI GALI THREE BALUDA
+//2118          ; Other_ID_Start # Sm       SCRIPT CAPITAL P
+//212E          ; Other_ID_Start # So       ESTIMATED SYMBOL
+//309B..309C    ; Other_ID_Start # Sk   [2] KATAKANA-HIRAGANA VOICED SOUND MARK..KATAKANA-HIRAGANA SEMI-VOICED SOUND MARK
+//00B7          ; Other_ID_Continue # Po       MIDDLE DOT
+//0387          ; Other_ID_Continue # Po       GREEK ANO TELEIA
+//1369..1371    ; Other_ID_Continue # No   [9] ETHIOPIC DIGIT ONE..ETHIOPIC DIGIT NINE
+//19DA          ; Other_ID_Continue # No       NEW TAI LUE THAM DIGIT ONE
+
+fragment UNICODE_OIDS: '\u1885' ..'\u1886' | '\u2118' | '\u212e' | '\u309b' ..'\u309c';
+
+fragment UNICODE_OIDC: '\u00b7' | '\u0387' | '\u1369' ..'\u1371' | '\u19da';
+
+/// id_start     ::=  <all characters in general categories Lu, Ll, Lt, Lm, Lo, Nl, the underscore, and characters with the Other_ID_Start property>
+fragment ID_START:
+    '_'
+    | [\p{L}]
+    | [\p{Nl}]
+    //| [\p{Other_ID_Start}]
+    | UNICODE_OIDS
+;
+
+/// id_continue  ::=  <all characters in id_start, plus characters in the categories Mn, Mc, Nd, Pc and others with the Other_ID_Continue property>
+fragment ID_CONTINUE:
+    ID_START
+    | [\p{Mn}]
+    | [\p{Mc}]
+    | [\p{Nd}]
+    | [\p{Pc}]
+    //| [\p{Other_ID_Continue}]
+    | UNICODE_OIDC
+;
\ No newline at end of file
diff --git a/LINVAST.Imperative/Builders/Python/ANTLR/Python3Lexer.interp b/LINVAST.Imperative/Builders/Python/ANTLR/Python3Lexer.interp
new file mode 100644
index 0000000..b467248
--- /dev/null
+++ b/LINVAST.Imperative/Builders/Python/ANTLR/Python3Lexer.interp
@@ -0,0 +1,350 @@
+token literal names:
+null
+null
+null
+null
+null
+null
+'and'
+'as'
+'assert'
+'async'
+'await'
+'break'
+'case'
+'class'
+'continue'
+'def'
+'del'
+'elif'
+'else'
+'except'
+'False'
+'finally'
+'for'
+'from'
+'global'
+'if'
+'import'
+'in'
+'is'
+'lambda'
+'match'
+'None'
+'nonlocal'
+'not'
+'or'
+'pass'
+'raise'
+'return'
+'True'
+'try'
+'_'
+'while'
+'with'
+'yield'
+null
+null
+null
+null
+null
+null
+null
+null
+null
+null
+'.'
+'...'
+'*'
+'('
+')'
+','
+':'
+';'
+'**'
+'='
+'['
+']'
+'|'
+'^'
+'&'
+'<<'
+'>>'
+'+'
+'-'
+'/'
+'%'
+'//'
+'~'
+'{'
+'}'
+'<'
+'>'
+'=='
+'>='
+'<='
+'<>'
+'!='
+'@'
+'->'
+'+='
+'-='
+'*='
+'@='
+'/='
+'%='
+'&='
+'|='
+'^='
+'<<='
+'>>='
+'**='
+'//='
+null
+null
+
+token symbolic names:
+null
+INDENT
+DEDENT
+STRING
+NUMBER
+INTEGER
+AND
+AS
+ASSERT
+ASYNC
+AWAIT
+BREAK
+CASE
+CLASS
+CONTINUE
+DEF
+DEL
+ELIF
+ELSE
+EXCEPT
+FALSE
+FINALLY
+FOR
+FROM
+GLOBAL
+IF
+IMPORT
+IN
+IS
+LAMBDA
+MATCH
+NONE
+NONLOCAL
+NOT
+OR
+PASS
+RAISE
+RETURN
+TRUE
+TRY
+UNDERSCORE
+WHILE
+WITH
+YIELD
+NEWLINE
+NAME
+STRING_LITERAL
+BYTES_LITERAL
+DECIMAL_INTEGER
+OCT_INTEGER
+HEX_INTEGER
+BIN_INTEGER
+FLOAT_NUMBER
+IMAG_NUMBER
+DOT
+ELLIPSIS
+STAR
+OPEN_PAREN
+CLOSE_PAREN
+COMMA
+COLON
+SEMI_COLON
+POWER
+ASSIGN
+OPEN_BRACK
+CLOSE_BRACK
+OR_OP
+XOR
+AND_OP
+LEFT_SHIFT
+RIGHT_SHIFT
+ADD
+MINUS
+DIV
+MOD
+IDIV
+NOT_OP
+OPEN_BRACE
+CLOSE_BRACE
+LESS_THAN
+GREATER_THAN
+EQUALS
+GT_EQ
+LT_EQ
+NOT_EQ_1
+NOT_EQ_2
+AT
+ARROW
+ADD_ASSIGN
+SUB_ASSIGN
+MULT_ASSIGN
+AT_ASSIGN
+DIV_ASSIGN
+MOD_ASSIGN
+AND_ASSIGN
+OR_ASSIGN
+XOR_ASSIGN
+LEFT_SHIFT_ASSIGN
+RIGHT_SHIFT_ASSIGN
+POWER_ASSIGN
+IDIV_ASSIGN
+SKIP_
+UNKNOWN_CHAR
+
+rule names:
+STRING
+NUMBER
+INTEGER
+AND
+AS
+ASSERT
+ASYNC
+AWAIT
+BREAK
+CASE
+CLASS
+CONTINUE
+DEF
+DEL
+ELIF
+ELSE
+EXCEPT
+FALSE
+FINALLY
+FOR
+FROM
+GLOBAL
+IF
+IMPORT
+IN
+IS
+LAMBDA
+MATCH
+NONE
+NONLOCAL
+NOT
+OR
+PASS
+RAISE
+RETURN
+TRUE
+TRY
+UNDERSCORE
+WHILE
+WITH
+YIELD
+NEWLINE
+NAME
+STRING_LITERAL
+BYTES_LITERAL
+DECIMAL_INTEGER
+OCT_INTEGER
+HEX_INTEGER
+BIN_INTEGER
+FLOAT_NUMBER
+IMAG_NUMBER
+DOT
+ELLIPSIS
+STAR
+OPEN_PAREN
+CLOSE_PAREN
+COMMA
+COLON
+SEMI_COLON
+POWER
+ASSIGN
+OPEN_BRACK
+CLOSE_BRACK
+OR_OP
+XOR
+AND_OP
+LEFT_SHIFT
+RIGHT_SHIFT
+ADD
+MINUS
+DIV
+MOD
+IDIV
+NOT_OP
+OPEN_BRACE
+CLOSE_BRACE
+LESS_THAN
+GREATER_THAN
+EQUALS
+GT_EQ
+LT_EQ
+NOT_EQ_1
+NOT_EQ_2
+AT
+ARROW
+ADD_ASSIGN
+SUB_ASSIGN
+MULT_ASSIGN
+AT_ASSIGN
+DIV_ASSIGN
+MOD_ASSIGN
+AND_ASSIGN
+OR_ASSIGN
+XOR_ASSIGN
+LEFT_SHIFT_ASSIGN
+RIGHT_SHIFT_ASSIGN
+POWER_ASSIGN
+IDIV_ASSIGN
+SKIP_
+UNKNOWN_CHAR
+SHORT_STRING
+LONG_STRING
+LONG_STRING_ITEM
+LONG_STRING_CHAR
+STRING_ESCAPE_SEQ
+NON_ZERO_DIGIT
+DIGIT
+OCT_DIGIT
+HEX_DIGIT
+BIN_DIGIT
+POINT_FLOAT
+EXPONENT_FLOAT
+INT_PART
+FRACTION
+EXPONENT
+SHORT_BYTES
+LONG_BYTES
+LONG_BYTES_ITEM
+SHORT_BYTES_CHAR_NO_SINGLE_QUOTE
+SHORT_BYTES_CHAR_NO_DOUBLE_QUOTE
+LONG_BYTES_CHAR
+BYTES_ESCAPE_SEQ
+SPACES
+COMMENT
+LINE_JOINING
+UNICODE_OIDS
+UNICODE_OIDC
+ID_START
+ID_CONTINUE
+
+channel names:
+DEFAULT_TOKEN_CHANNEL
+HIDDEN
+
+mode names:
+DEFAULT_MODE
+
+atn:
+[4, 0, 102, 910, 6, -1, 2, 0, 7, 0, 2, 1, 7, 1, 2, 2, 7, 2, 2, 3, 7, 3, 2, 4, 7, 4, 2, 5, 7, 5, 2, 6, 7, 6, 2, 7, 7, 7, 2, 8, 7, 8, 2, 9, 7, 9, 2, 10, 7, 10, 2, 11, 7, 11, 2, 12, 7, 12, 2, 13, 7, 13, 2, 14, 7, 14, 2, 15, 7, 15, 2, 16, 7, 16, 2, 17, 7, 17, 2, 18, 7, 18, 2, 19, 7, 19, 2, 20, 7, 20, 2, 21, 7, 21, 2, 22, 7, 22, 2, 23, 7, 23, 2, 24, 7, 24, 2, 25, 7, 25, 2, 26, 7, 26, 2, 27, 7, 27, 2, 28, 7, 28, 2, 29, 7, 29, 2, 30, 7, 30, 2, 31, 7, 31, 2, 32, 7, 32, 2, 33, 7, 33, 2, 34, 7, 34, 2, 35, 7, 35, 2, 36, 7, 36, 2, 37, 7, 37, 2, 38, 7, 38, 2, 39, 7, 39, 2, 40, 7, 40, 2, 41, 7, 41, 2, 42, 7, 42, 2, 43, 7, 43, 2, 44, 7, 44, 2, 45, 7, 45, 2, 46, 7, 46, 2, 47, 7, 47, 2, 48, 7, 48, 2, 49, 7, 49, 2, 50, 7, 50, 2, 51, 7, 51, 2, 52, 7, 52, 2, 53, 7, 53, 2, 54, 7, 54, 2, 55, 7, 55, 2, 56, 7, 56, 2, 57, 7, 57, 2, 58, 7, 58, 2, 59, 7, 59, 2, 60, 7, 60, 2, 61, 7, 61, 2, 62, 7, 62, 2, 63, 7, 63, 2, 64, 7, 64, 2, 65, 7, 65, 2, 66, 7, 66, 2, 67, 7, 67, 2, 68, 7, 68, 2, 69, 7, 69, 2, 70, 7, 70, 2, 71, 7, 71, 2, 72, 7, 72, 2, 73, 7, 73, 2, 74, 7, 74, 2, 75, 7, 75, 2, 76, 7, 76, 2, 77, 7, 77, 2, 78, 7, 78, 2, 79, 7, 79, 2, 80, 7, 80, 2, 81, 7, 81, 2, 82, 7, 82, 2, 83, 7, 83, 2, 84, 7, 84, 2, 85, 7, 85, 2, 86, 7, 86, 2, 87, 7, 87, 2, 88, 7, 88, 2, 89, 7, 89, 2, 90, 7, 90, 2, 91, 7, 91, 2, 92, 7, 92, 2, 93, 7, 93, 2, 94, 7, 94, 2, 95, 7, 95, 2, 96, 7, 96, 2, 97, 7, 97, 2, 98, 7, 98, 2, 99, 7, 99, 2, 100, 7, 100, 2, 101, 7, 101, 2, 102, 7, 102, 2, 103, 7, 103, 2, 104, 7, 104, 2, 105, 7, 105, 2, 106, 7, 106, 2, 107, 7, 107, 2, 108, 7, 108, 2, 109, 7, 109, 2, 110, 7, 110, 2, 111, 7, 111, 2, 112, 7, 112, 2, 113, 7, 113, 2, 114, 7, 114, 2, 115, 7, 115, 2, 116, 7, 116, 2, 117, 7, 117, 2, 118, 7, 118, 2, 119, 7, 119, 2, 120, 7, 120, 2, 121, 7, 121, 2, 122, 7, 122, 2, 123, 7, 123, 2, 124, 7, 124, 2, 125, 7, 125, 2, 126, 7, 126, 2, 127, 7, 127, 2, 128, 7, 128, 1, 0, 1, 0, 3, 0, 262, 8, 0, 1, 1, 1, 1, 1, 1, 3, 1, 267, 8, 1, 1, 2, 1, 2, 1, 2, 1, 2, 3, 2, 273, 8, 2, 1, 3, 1, 3, 1, 3, 1, 3, 1, 4, 1, 4, 1, 4, 1, 5, 1, 5, 1, 5, 1, 5, 1, 5, 1, 5, 1, 5, 1, 6, 1, 6, 1, 6, 1, 6, 1, 6, 1, 6, 1, 7, 1, 7, 1, 7, 1, 7, 1, 7, 1, 7, 1, 8, 1, 8, 1, 8, 1, 8, 1, 8, 1, 8, 1, 9, 1, 9, 1, 9, 1, 9, 1, 9, 1, 10, 1, 10, 1, 10, 1, 10, 1, 10, 1, 10, 1, 11, 1, 11, 1, 11, 1, 11, 1, 11, 1, 11, 1, 11, 1, 11, 1, 11, 1, 12, 1, 12, 1, 12, 1, 12, 1, 13, 1, 13, 1, 13, 1, 13, 1, 14, 1, 14, 1, 14, 1, 14, 1, 14, 1, 15, 1, 15, 1, 15, 1, 15, 1, 15, 1, 16, 1, 16, 1, 16, 1, 16, 1, 16, 1, 16, 1, 16, 1, 17, 1, 17, 1, 17, 1, 17, 1, 17, 1, 17, 1, 18, 1, 18, 1, 18, 1, 18, 1, 18, 1, 18, 1, 18, 1, 18, 1, 19, 1, 19, 1, 19, 1, 19, 1, 20, 1, 20, 1, 20, 1, 20, 1, 20, 1, 21, 1, 21, 1, 21, 1, 21, 1, 21, 1, 21, 1, 21, 1, 22, 1, 22, 1, 22, 1, 23, 1, 23, 1, 23, 1, 23, 1, 23, 1, 23, 1, 23, 1, 24, 1, 24, 1, 24, 1, 25, 1, 25, 1, 25, 1, 26, 1, 26, 1, 26, 1, 26, 1, 26, 1, 26, 1, 26, 1, 27, 1, 27, 1, 27, 1, 27, 1, 27, 1, 27, 1, 28, 1, 28, 1, 28, 1, 28, 1, 28, 1, 29, 1, 29, 1, 29, 1, 29, 1, 29, 1, 29, 1, 29, 1, 29, 1, 29, 1, 30, 1, 30, 1, 30, 1, 30, 1, 31, 1, 31, 1, 31, 1, 32, 1, 32, 1, 32, 1, 32, 1, 32, 1, 33, 1, 33, 1, 33, 1, 33, 1, 33, 1, 33, 1, 34, 1, 34, 1, 34, 1, 34, 1, 34, 1, 34, 1, 34, 1, 35, 1, 35, 1, 35, 1, 35, 1, 35, 1, 36, 1, 36, 1, 36, 1, 36, 1, 37, 1, 37, 1, 38, 1, 38, 1, 38, 1, 38, 1, 38, 1, 38, 1, 39, 1, 39, 1, 39, 1, 39, 1, 39, 1, 40, 1, 40, 1, 40, 1, 40, 1, 40, 1, 40, 1, 41, 1, 41, 1, 41, 3, 41, 481, 8, 41, 1, 41, 1, 41, 3, 41, 485, 8, 41, 1, 41, 3, 41, 488, 8, 41, 3, 41, 490, 8, 41, 1, 41, 1, 41, 1, 42, 1, 42, 5, 42, 496, 8, 42, 10, 42, 12, 42, 499, 9, 42, 1, 43, 1, 43, 1, 43, 1, 43, 1, 43, 3, 43, 506, 8, 43, 1, 43, 1, 43, 3, 43, 510, 8, 43, 1, 44, 1, 44, 1, 44, 1, 44, 1, 44, 3, 44, 517, 8, 44, 1, 44, 1, 44, 3, 44, 521, 8, 44, 1, 45, 1, 45, 5, 45, 525, 8, 45, 10, 45, 12, 45, 528, 9, 45, 1, 45, 4, 45, 531, 8, 45, 11, 45, 12, 45, 532, 3, 45, 535, 8, 45, 1, 46, 1, 46, 1, 46, 4, 46, 540, 8, 46, 11, 46, 12, 46, 541, 1, 47, 1, 47, 1, 47, 4, 47, 547, 8, 47, 11, 47, 12, 47, 548, 1, 48, 1, 48, 1, 48, 4, 48, 554, 8, 48, 11, 48, 12, 48, 555, 1, 49, 1, 49, 3, 49, 560, 8, 49, 1, 50, 1, 50, 3, 50, 564, 8, 50, 1, 50, 1, 50, 1, 51, 1, 51, 1, 52, 1, 52, 1, 52, 1, 52, 1, 53, 1, 53, 1, 54, 1, 54, 1, 54, 1, 55, 1, 55, 1, 55, 1, 56, 1, 56, 1, 57, 1, 57, 1, 58, 1, 58, 1, 59, 1, 59, 1, 59, 1, 60, 1, 60, 1, 61, 1, 61, 1, 61, 1, 62, 1, 62, 1, 62, 1, 63, 1, 63, 1, 64, 1, 64, 1, 65, 1, 65, 1, 66, 1, 66, 1, 66, 1, 67, 1, 67, 1, 67, 1, 68, 1, 68, 1, 69, 1, 69, 1, 70, 1, 70, 1, 71, 1, 71, 1, 72, 1, 72, 1, 72, 1, 73, 1, 73, 1, 74, 1, 74, 1, 74, 1, 75, 1, 75, 1, 75, 1, 76, 1, 76, 1, 77, 1, 77, 1, 78, 1, 78, 1, 78, 1, 79, 1, 79, 1, 79, 1, 80, 1, 80, 1, 80, 1, 81, 1, 81, 1, 81, 1, 82, 1, 82, 1, 82, 1, 83, 1, 83, 1, 84, 1, 84, 1, 84, 1, 85, 1, 85, 1, 85, 1, 86, 1, 86, 1, 86, 1, 87, 1, 87, 1, 87, 1, 88, 1, 88, 1, 88, 1, 89, 1, 89, 1, 89, 1, 90, 1, 90, 1, 90, 1, 91, 1, 91, 1, 91, 1, 92, 1, 92, 1, 92, 1, 93, 1, 93, 1, 93, 1, 94, 1, 94, 1, 94, 1, 94, 1, 95, 1, 95, 1, 95, 1, 95, 1, 96, 1, 96, 1, 96, 1, 96, 1, 97, 1, 97, 1, 97, 1, 97, 1, 98, 1, 98, 1, 98, 3, 98, 700, 8, 98, 1, 98, 1, 98, 1, 99, 1, 99, 1, 100, 1, 100, 1, 100, 5, 100, 709, 8, 100, 10, 100, 12, 100, 712, 9, 100, 1, 100, 1, 100, 1, 100, 1, 100, 5, 100, 718, 8, 100, 10, 100, 12, 100, 721, 9, 100, 1, 100, 3, 100, 724, 8, 100, 1, 101, 1, 101, 1, 101, 1, 101, 1, 101, 5, 101, 731, 8, 101, 10, 101, 12, 101, 734, 9, 101, 1, 101, 1, 101, 1, 101, 1, 101, 1, 101, 1, 101, 1, 101, 1, 101, 5, 101, 744, 8, 101, 10, 101, 12, 101, 747, 9, 101, 1, 101, 1, 101, 1, 101, 3, 101, 752, 8, 101, 1, 102, 1, 102, 3, 102, 756, 8, 102, 1, 103, 1, 103, 1, 104, 1, 104, 1, 104, 1, 104, 3, 104, 764, 8, 104, 1, 105, 1, 105, 1, 106, 1, 106, 1, 107, 1, 107, 1, 108, 1, 108, 1, 109, 1, 109, 1, 110, 3, 110, 777, 8, 110, 1, 110, 1, 110, 1, 110, 1, 110, 3, 110, 783, 8, 110, 1, 111, 1, 111, 3, 111, 787, 8, 111, 1, 111, 1, 111, 1, 112, 4, 112, 792, 8, 112, 11, 112, 12, 112, 793, 1, 113, 1, 113, 4, 113, 798, 8, 113, 11, 113, 12, 113, 799, 1, 114, 1, 114, 3, 114, 804, 8, 114, 1, 114, 4, 114, 807, 8, 114, 11, 114, 12, 114, 808, 1, 115, 1, 115, 1, 115, 5, 115, 814, 8, 115, 10, 115, 12, 115, 817, 9, 115, 1, 115, 1, 115, 1, 115, 1, 115, 5, 115, 823, 8, 115, 10, 115, 12, 115, 826, 9, 115, 1, 115, 3, 115, 829, 8, 115, 1, 116, 1, 116, 1, 116, 1, 116, 1, 116, 5, 116, 836, 8, 116, 10, 116, 12, 116, 839, 9, 116, 1, 116, 1, 116, 1, 116, 1, 116, 1, 116, 1, 116, 1, 116, 1, 116, 5, 116, 849, 8, 116, 10, 116, 12, 116, 852, 9, 116, 1, 116, 1, 116, 1, 116, 3, 116, 857, 8, 116, 1, 117, 1, 117, 3, 117, 861, 8, 117, 1, 118, 3, 118, 864, 8, 118, 1, 119, 3, 119, 867, 8, 119, 1, 120, 3, 120, 870, 8, 120, 1, 121, 1, 121, 1, 121, 1, 122, 4, 122, 876, 8, 122, 11, 122, 12, 122, 877, 1, 123, 1, 123, 5, 123, 882, 8, 123, 10, 123, 12, 123, 885, 9, 123, 1, 124, 1, 124, 3, 124, 889, 8, 124, 1, 124, 3, 124, 892, 8, 124, 1, 124, 1, 124, 3, 124, 896, 8, 124, 1, 125, 1, 125, 1, 126, 1, 126, 1, 127, 1, 127, 3, 127, 904, 8, 127, 1, 128, 1, 128, 1, 128, 3, 128, 909, 8, 128, 4, 732, 745, 837, 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0, 0, 609, 136, 1, 0, 0, 0, 610, 611, 5, 43, 0, 0, 611, 138, 1, 0, 0, 0, 612, 613, 5, 45, 0, 0, 613, 140, 1, 0, 0, 0, 614, 615, 5, 47, 0, 0, 615, 142, 1, 0, 0, 0, 616, 617, 5, 37, 0, 0, 617, 144, 1, 0, 0, 0, 618, 619, 5, 47, 0, 0, 619, 620, 5, 47, 0, 0, 620, 146, 1, 0, 0, 0, 621, 622, 5, 126, 0, 0, 622, 148, 1, 0, 0, 0, 623, 624, 5, 123, 0, 0, 624, 625, 6, 74, 5, 0, 625, 150, 1, 0, 0, 0, 626, 627, 5, 125, 0, 0, 627, 628, 6, 75, 6, 0, 628, 152, 1, 0, 0, 0, 629, 630, 5, 60, 0, 0, 630, 154, 1, 0, 0, 0, 631, 632, 5, 62, 0, 0, 632, 156, 1, 0, 0, 0, 633, 634, 5, 61, 0, 0, 634, 635, 5, 61, 0, 0, 635, 158, 1, 0, 0, 0, 636, 637, 5, 62, 0, 0, 637, 638, 5, 61, 0, 0, 638, 160, 1, 0, 0, 0, 639, 640, 5, 60, 0, 0, 640, 641, 5, 61, 0, 0, 641, 162, 1, 0, 0, 0, 642, 643, 5, 60, 0, 0, 643, 644, 5, 62, 0, 0, 644, 164, 1, 0, 0, 0, 645, 646, 5, 33, 0, 0, 646, 647, 5, 61, 0, 0, 647, 166, 1, 0, 0, 0, 648, 649, 5, 64, 0, 0, 649, 168, 1, 0, 0, 0, 650, 651, 5, 45, 0, 0, 651, 652, 5, 62, 0, 0, 652, 170, 1, 0, 0, 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62, 4, 1, 74, 5, 1, 75, 6, 6, 0, 0]
\ No newline at end of file
diff --git a/LINVAST.Imperative/Builders/Python/ANTLR/Python3Lexer.tokens b/LINVAST.Imperative/Builders/Python/ANTLR/Python3Lexer.tokens
new file mode 100644
index 0000000..3e1c535
--- /dev/null
+++ b/LINVAST.Imperative/Builders/Python/ANTLR/Python3Lexer.tokens
@@ -0,0 +1,187 @@
+INDENT=1
+DEDENT=2
+STRING=3
+NUMBER=4
+INTEGER=5
+AND=6
+AS=7
+ASSERT=8
+ASYNC=9
+AWAIT=10
+BREAK=11
+CASE=12
+CLASS=13
+CONTINUE=14
+DEF=15
+DEL=16
+ELIF=17
+ELSE=18
+EXCEPT=19
+FALSE=20
+FINALLY=21
+FOR=22
+FROM=23
+GLOBAL=24
+IF=25
+IMPORT=26
+IN=27
+IS=28
+LAMBDA=29
+MATCH=30
+NONE=31
+NONLOCAL=32
+NOT=33
+OR=34
+PASS=35
+RAISE=36
+RETURN=37
+TRUE=38
+TRY=39
+UNDERSCORE=40
+WHILE=41
+WITH=42
+YIELD=43
+NEWLINE=44
+NAME=45
+STRING_LITERAL=46
+BYTES_LITERAL=47
+DECIMAL_INTEGER=48
+OCT_INTEGER=49
+HEX_INTEGER=50
+BIN_INTEGER=51
+FLOAT_NUMBER=52
+IMAG_NUMBER=53
+DOT=54
+ELLIPSIS=55
+STAR=56
+OPEN_PAREN=57
+CLOSE_PAREN=58
+COMMA=59
+COLON=60
+SEMI_COLON=61
+POWER=62
+ASSIGN=63
+OPEN_BRACK=64
+CLOSE_BRACK=65
+OR_OP=66
+XOR=67
+AND_OP=68
+LEFT_SHIFT=69
+RIGHT_SHIFT=70
+ADD=71
+MINUS=72
+DIV=73
+MOD=74
+IDIV=75
+NOT_OP=76
+OPEN_BRACE=77
+CLOSE_BRACE=78
+LESS_THAN=79
+GREATER_THAN=80
+EQUALS=81
+GT_EQ=82
+LT_EQ=83
+NOT_EQ_1=84
+NOT_EQ_2=85
+AT=86
+ARROW=87
+ADD_ASSIGN=88
+SUB_ASSIGN=89
+MULT_ASSIGN=90
+AT_ASSIGN=91
+DIV_ASSIGN=92
+MOD_ASSIGN=93
+AND_ASSIGN=94
+OR_ASSIGN=95
+XOR_ASSIGN=96
+LEFT_SHIFT_ASSIGN=97
+RIGHT_SHIFT_ASSIGN=98
+POWER_ASSIGN=99
+IDIV_ASSIGN=100
+SKIP_=101
+UNKNOWN_CHAR=102
+'and'=6
+'as'=7
+'assert'=8
+'async'=9
+'await'=10
+'break'=11
+'case'=12
+'class'=13
+'continue'=14
+'def'=15
+'del'=16
+'elif'=17
+'else'=18
+'except'=19
+'False'=20
+'finally'=21
+'for'=22
+'from'=23
+'global'=24
+'if'=25
+'import'=26
+'in'=27
+'is'=28
+'lambda'=29
+'match'=30
+'None'=31
+'nonlocal'=32
+'not'=33
+'or'=34
+'pass'=35
+'raise'=36
+'return'=37
+'True'=38
+'try'=39
+'_'=40
+'while'=41
+'with'=42
+'yield'=43
+'.'=54
+'...'=55
+'*'=56
+'('=57
+')'=58
+','=59
+':'=60
+';'=61
+'**'=62
+'='=63
+'['=64
+']'=65
+'|'=66
+'^'=67
+'&'=68
+'<<'=69
+'>>'=70
+'+'=71
+'-'=72
+'/'=73
+'%'=74
+'//'=75
+'~'=76
+'{'=77
+'}'=78
+'<'=79
+'>'=80
+'=='=81
+'>='=82
+'<='=83
+'<>'=84
+'!='=85
+'@'=86
+'->'=87
+'+='=88
+'-='=89
+'*='=90
+'@='=91
+'/='=92
+'%='=93
+'&='=94
+'|='=95
+'^='=96
+'<<='=97
+'>>='=98
+'**='=99
+'//='=100
diff --git a/LINVAST.Imperative/Builders/Python/ANTLR/Python3LexerBase.cs b/LINVAST.Imperative/Builders/Python/ANTLR/Python3LexerBase.cs
new file mode 100644
index 0000000..ad3cacd
--- /dev/null
+++ b/LINVAST.Imperative/Builders/Python/ANTLR/Python3LexerBase.cs
@@ -0,0 +1,177 @@
+#nullable disable
+namespace LINVAST.Imperative.Builders.Python {
+using Antlr4.Runtime;
+using System.Collections.Generic;
+using System;
+using System.IO;
+using System.Linq;
+using System.Text.RegularExpressions;
+
+public abstract class Python3LexerBase : Lexer {
+    // A queue where extra tokens are pushed on (see the NEWLINE lexer rule).
+    private LinkedList<IToken> Tokens = new LinkedList<IToken>();
+    // The stack that keeps track of the indentation level.
+    private Stack<int> Indents = new Stack<int>();
+    // The amount of opened braces, brackets and parenthesis.
+    private int Opened = 0;
+    // The most recently produced token.
+    private IToken LastToken = null;
+
+    public Python3LexerBase(ICharStream input)
+        : base(input)
+    {
+    }
+    public Python3LexerBase(ICharStream input, TextWriter output, TextWriter errorOutput)
+        : base(input, output, errorOutput)
+    {
+    }
+
+    public override void Emit(IToken token)
+    {
+        base.Token = token;
+        Tokens.AddLast(token);
+    }
+
+    private CommonToken CommonToken(int type, string text)
+    {
+        int stop = CharIndex - 1;
+        int start = text.Length == 0 ? stop : stop - text.Length + 1;
+        return new CommonToken(Tuple.Create((ITokenSource)this, (ICharStream)InputStream), type, DefaultTokenChannel, start, stop);
+    }
+
+    private IToken CreateDedent()
+    {
+        var dedent = CommonToken(Python3Parser.DEDENT, "");
+        dedent.Line = LastToken.Line;
+        return dedent;
+    }
+
+    public override IToken NextToken()
+    {
+        // Check if the end-of-file is ahead and there are still some DEDENTS expected.
+        if (((ICharStream)InputStream).LA(1) == Eof && Indents.Count != 0)
+        {
+            // Remove any trailing EOF tokens from our buffer.
+            for (var node  = Tokens.First; node != null; )
+            {
+                var temp = node.Next;
+                if (node.Value.Type == Eof)
+                {
+                    Tokens.Remove(node);
+                }
+                node = temp;
+            }
+            
+            // First emit an extra line break that serves as the end of the statement.
+            this.Emit(CommonToken(Python3Parser.NEWLINE, "\n"));
+
+            // Now emit as much DEDENT tokens as needed.
+            while (Indents.Count != 0)
+            {
+                Emit(CreateDedent());
+                Indents.Pop();
+            }
+
+            // Put the EOF back on the token stream.
+            Emit(CommonToken(Python3Parser.Eof, "<EOF>"));
+        }
+
+        var next = base.NextToken();
+        if (next.Channel == DefaultTokenChannel)
+        {
+            // Keep track of the last token on the default channel.
+            LastToken = next;
+        }
+
+        if (Tokens.Count == 0)
+        {
+            return next;
+        }
+        else
+        {
+            var x = Tokens.First.Value;
+            Tokens.RemoveFirst();
+            return x;
+        }
+    }
+
+    // Calculates the indentation of the provided spaces, taking the
+    // following rules into account:
+    //
+    // "Tabs are replaced (from left to right) by one to eight spaces
+    //  such that the total number of characters up to and including
+    //  the replacement is a multiple of eight [...]"
+    //
+    //  -- https://docs.python.org/3.1/reference/lexical_analysis.html#indentation
+    static int GetIndentationCount(string spaces)
+    {
+        int count = 0;
+        foreach (char ch in spaces.ToCharArray())
+        {
+            count += ch == '\t' ? 8 - (count % 8) : 1;
+        }
+        return count;
+    }
+
+    public bool atStartOfInput()
+    {
+        return Column == 0 && Line == 1;
+    }
+
+    public void openBrace(){
+        Opened++;
+    }
+
+    public void closeBrace(){
+        Opened--;
+    }
+
+    public void onNewLine(){
+        var newLine = (new Regex("[^\r\n\f]+")).Replace(Text, "");
+        var spaces = (new Regex("[\r\n\f]+")).Replace(Text, "");
+
+        // Strip newlines inside open clauses except if we are near EOF. We keep NEWLINEs near EOF to
+        // satisfy the final newline needed by the single_put rule used by the REPL.
+        int next = ((ICharStream)InputStream).LA(1);
+        int nextnext = ((ICharStream)InputStream).LA(2);
+        if (Opened > 0 || (nextnext != -1 && (next == '\r' || next == '\n' || next == '\f' || next == '#')))
+        {
+            // If we're inside a list or on a blank line, ignore all indents, 
+            // dedents and line breaks.
+            Skip();
+        }
+        else
+        {
+            Emit(CommonToken(Python3Lexer.NEWLINE, newLine));
+            int indent = GetIndentationCount(spaces);
+            int previous = Indents.Count == 0 ? 0 : Indents.Peek();
+            if (indent == previous)
+            {
+                // skip indents of the same size as the present indent-size
+                Skip();
+            }
+            else if (indent > previous) {
+                Indents.Push(indent);
+                Emit(CommonToken(Python3Parser.INDENT, spaces));
+            }
+            else {
+                // Possibly emit more than 1 DEDENT token.
+                while(Indents.Count != 0 && Indents.Peek() > indent)
+                {
+                    this.Emit(CreateDedent());
+                    Indents.Pop();
+                }
+            }
+        }
+    }
+
+    public override void Reset()
+    {
+        Tokens = new LinkedList<IToken>();
+        Indents = new Stack<int>();
+        Opened = 0;
+        LastToken = null;
+        base.Reset();
+    }
+}
+}
diff --git a/LINVAST.Imperative/Builders/Python/ANTLR/Python3Parser.cs b/LINVAST.Imperative/Builders/Python/ANTLR/Python3Parser.cs
new file mode 100644
index 0000000..bbf3a0a
--- /dev/null
+++ b/LINVAST.Imperative/Builders/Python/ANTLR/Python3Parser.cs
@@ -0,0 +1,10337 @@
+#nullable disable
+namespace LINVAST.Imperative.Builders.Python {
+//------------------------------------------------------------------------------
+// <auto-generated>
+//     This code was generated by a tool.
+//     ANTLR Version: 4.13.2
+//
+//     Changes to this file may cause incorrect behavior and will be lost if
+//     the code is regenerated.
+// </auto-generated>
+//------------------------------------------------------------------------------
+
+// Generated from Python3Parser.g4 by ANTLR 4.13.2
+
+// Unreachable code detected
+#pragma warning disable 0162
+// The variable '...' is assigned but its value is never used
+#pragma warning disable 0219
+// Missing XML comment for publicly visible type or member '...'
+#pragma warning disable 1591
+// Ambiguous reference in cref attribute
+#pragma warning disable 419
+
+using System;
+using System.IO;
+using System.Text;
+using System.Diagnostics;
+using System.Collections.Generic;
+using Antlr4.Runtime;
+using Antlr4.Runtime.Atn;
+using Antlr4.Runtime.Misc;
+using Antlr4.Runtime.Tree;
+using DFA = Antlr4.Runtime.Dfa.DFA;
+
+[System.CodeDom.Compiler.GeneratedCode("ANTLR", "4.13.2")]
+[System.CLSCompliant(false)]
+public partial class Python3Parser : Python3ParserBase {
+	protected static DFA[] decisionToDFA;
+	protected static PredictionContextCache sharedContextCache = new PredictionContextCache();
+	public const int
+		INDENT=1, DEDENT=2, STRING=3, NUMBER=4, INTEGER=5, AND=6, AS=7, ASSERT=8, 
+		ASYNC=9, AWAIT=10, BREAK=11, CASE=12, CLASS=13, CONTINUE=14, DEF=15, DEL=16, 
+		ELIF=17, ELSE=18, EXCEPT=19, FALSE=20, FINALLY=21, FOR=22, FROM=23, GLOBAL=24, 
+		IF=25, IMPORT=26, IN=27, IS=28, LAMBDA=29, MATCH=30, NONE=31, NONLOCAL=32, 
+		NOT=33, OR=34, PASS=35, RAISE=36, RETURN=37, TRUE=38, TRY=39, UNDERSCORE=40, 
+		WHILE=41, WITH=42, YIELD=43, NEWLINE=44, NAME=45, STRING_LITERAL=46, BYTES_LITERAL=47, 
+		DECIMAL_INTEGER=48, OCT_INTEGER=49, HEX_INTEGER=50, BIN_INTEGER=51, FLOAT_NUMBER=52, 
+		IMAG_NUMBER=53, DOT=54, ELLIPSIS=55, STAR=56, OPEN_PAREN=57, CLOSE_PAREN=58, 
+		COMMA=59, COLON=60, SEMI_COLON=61, POWER=62, ASSIGN=63, OPEN_BRACK=64, 
+		CLOSE_BRACK=65, OR_OP=66, XOR=67, AND_OP=68, LEFT_SHIFT=69, RIGHT_SHIFT=70, 
+		ADD=71, MINUS=72, DIV=73, MOD=74, IDIV=75, NOT_OP=76, OPEN_BRACE=77, CLOSE_BRACE=78, 
+		LESS_THAN=79, GREATER_THAN=80, EQUALS=81, GT_EQ=82, LT_EQ=83, NOT_EQ_1=84, 
+		NOT_EQ_2=85, AT=86, ARROW=87, ADD_ASSIGN=88, SUB_ASSIGN=89, MULT_ASSIGN=90, 
+		AT_ASSIGN=91, DIV_ASSIGN=92, MOD_ASSIGN=93, AND_ASSIGN=94, OR_ASSIGN=95, 
+		XOR_ASSIGN=96, LEFT_SHIFT_ASSIGN=97, RIGHT_SHIFT_ASSIGN=98, POWER_ASSIGN=99, 
+		IDIV_ASSIGN=100, SKIP_=101, UNKNOWN_CHAR=102;
+	public const int
+		RULE_single_input = 0, RULE_file_input = 1, RULE_eval_input = 2, RULE_decorator = 3, 
+		RULE_decorators = 4, RULE_decorated = 5, RULE_async_funcdef = 6, RULE_funcdef = 7, 
+		RULE_parameters = 8, RULE_typedargslist = 9, RULE_tfpdef = 10, RULE_varargslist = 11, 
+		RULE_vfpdef = 12, RULE_stmt = 13, RULE_simple_stmts = 14, RULE_simple_stmt = 15, 
+		RULE_expr_stmt = 16, RULE_annassign = 17, RULE_testlist_star_expr = 18, 
+		RULE_augassign = 19, RULE_del_stmt = 20, RULE_pass_stmt = 21, RULE_flow_stmt = 22, 
+		RULE_break_stmt = 23, RULE_continue_stmt = 24, RULE_return_stmt = 25, 
+		RULE_yield_stmt = 26, RULE_raise_stmt = 27, RULE_import_stmt = 28, RULE_import_name = 29, 
+		RULE_import_from = 30, RULE_import_as_name = 31, RULE_dotted_as_name = 32, 
+		RULE_import_as_names = 33, RULE_dotted_as_names = 34, RULE_dotted_name = 35, 
+		RULE_global_stmt = 36, RULE_nonlocal_stmt = 37, RULE_assert_stmt = 38, 
+		RULE_compound_stmt = 39, RULE_async_stmt = 40, RULE_if_stmt = 41, RULE_while_stmt = 42, 
+		RULE_for_stmt = 43, RULE_try_stmt = 44, RULE_with_stmt = 45, RULE_with_item = 46, 
+		RULE_except_clause = 47, RULE_block = 48, RULE_match_stmt = 49, RULE_subject_expr = 50, 
+		RULE_star_named_expressions = 51, RULE_star_named_expression = 52, RULE_case_block = 53, 
+		RULE_guard = 54, RULE_patterns = 55, RULE_pattern = 56, RULE_as_pattern = 57, 
+		RULE_or_pattern = 58, RULE_closed_pattern = 59, RULE_literal_pattern = 60, 
+		RULE_literal_expr = 61, RULE_complex_number = 62, RULE_signed_number = 63, 
+		RULE_signed_real_number = 64, RULE_real_number = 65, RULE_imaginary_number = 66, 
+		RULE_capture_pattern = 67, RULE_pattern_capture_target = 68, RULE_wildcard_pattern = 69, 
+		RULE_value_pattern = 70, RULE_attr = 71, RULE_name_or_attr = 72, RULE_group_pattern = 73, 
+		RULE_sequence_pattern = 74, RULE_open_sequence_pattern = 75, RULE_maybe_sequence_pattern = 76, 
+		RULE_maybe_star_pattern = 77, RULE_star_pattern = 78, RULE_mapping_pattern = 79, 
+		RULE_items_pattern = 80, RULE_key_value_pattern = 81, RULE_double_star_pattern = 82, 
+		RULE_class_pattern = 83, RULE_positional_patterns = 84, RULE_keyword_patterns = 85, 
+		RULE_keyword_pattern = 86, RULE_test = 87, RULE_test_nocond = 88, RULE_lambdef = 89, 
+		RULE_lambdef_nocond = 90, RULE_or_test = 91, RULE_and_test = 92, RULE_not_test = 93, 
+		RULE_comparison = 94, RULE_comp_op = 95, RULE_star_expr = 96, RULE_expr = 97, 
+		RULE_atom_expr = 98, RULE_atom = 99, RULE_name = 100, RULE_testlist_comp = 101, 
+		RULE_trailer = 102, RULE_subscriptlist = 103, RULE_subscript_ = 104, RULE_sliceop = 105, 
+		RULE_exprlist = 106, RULE_testlist = 107, RULE_dictorsetmaker = 108, RULE_classdef = 109, 
+		RULE_arglist = 110, RULE_argument = 111, RULE_comp_iter = 112, RULE_comp_for = 113, 
+		RULE_comp_if = 114, RULE_encoding_decl = 115, RULE_yield_expr = 116, RULE_yield_arg = 117, 
+		RULE_strings = 118;
+	public static readonly string[] ruleNames = {
+		"single_input", "file_input", "eval_input", "decorator", "decorators", 
+		"decorated", "async_funcdef", "funcdef", "parameters", "typedargslist", 
+		"tfpdef", "varargslist", "vfpdef", "stmt", "simple_stmts", "simple_stmt", 
+		"expr_stmt", "annassign", "testlist_star_expr", "augassign", "del_stmt", 
+		"pass_stmt", "flow_stmt", "break_stmt", "continue_stmt", "return_stmt", 
+		"yield_stmt", "raise_stmt", "import_stmt", "import_name", "import_from", 
+		"import_as_name", "dotted_as_name", "import_as_names", "dotted_as_names", 
+		"dotted_name", "global_stmt", "nonlocal_stmt", "assert_stmt", "compound_stmt", 
+		"async_stmt", "if_stmt", "while_stmt", "for_stmt", "try_stmt", "with_stmt", 
+		"with_item", "except_clause", "block", "match_stmt", "subject_expr", "star_named_expressions", 
+		"star_named_expression", "case_block", "guard", "patterns", "pattern", 
+		"as_pattern", "or_pattern", "closed_pattern", "literal_pattern", "literal_expr", 
+		"complex_number", "signed_number", "signed_real_number", "real_number", 
+		"imaginary_number", "capture_pattern", "pattern_capture_target", "wildcard_pattern", 
+		"value_pattern", "attr", "name_or_attr", "group_pattern", "sequence_pattern", 
+		"open_sequence_pattern", "maybe_sequence_pattern", "maybe_star_pattern", 
+		"star_pattern", "mapping_pattern", "items_pattern", "key_value_pattern", 
+		"double_star_pattern", "class_pattern", "positional_patterns", "keyword_patterns", 
+		"keyword_pattern", "test", "test_nocond", "lambdef", "lambdef_nocond", 
+		"or_test", "and_test", "not_test", "comparison", "comp_op", "star_expr", 
+		"expr", "atom_expr", "atom", "name", "testlist_comp", "trailer", "subscriptlist", 
+		"subscript_", "sliceop", "exprlist", "testlist", "dictorsetmaker", "classdef", 
+		"arglist", "argument", "comp_iter", "comp_for", "comp_if", "encoding_decl", 
+		"yield_expr", "yield_arg", "strings"
+	};
+
+	private static readonly string[] _LiteralNames = {
+		null, null, null, null, null, null, "'and'", "'as'", "'assert'", "'async'", 
+		"'await'", "'break'", "'case'", "'class'", "'continue'", "'def'", "'del'", 
+		"'elif'", "'else'", "'except'", "'False'", "'finally'", "'for'", "'from'", 
+		"'global'", "'if'", "'import'", "'in'", "'is'", "'lambda'", "'match'", 
+		"'None'", "'nonlocal'", "'not'", "'or'", "'pass'", "'raise'", "'return'", 
+		"'True'", "'try'", "'_'", "'while'", "'with'", "'yield'", null, null, 
+		null, null, null, null, null, null, null, null, "'.'", "'...'", "'*'", 
+		"'('", "')'", "','", "':'", "';'", "'**'", "'='", "'['", "']'", "'|'", 
+		"'^'", "'&'", "'<<'", "'>>'", "'+'", "'-'", "'/'", "'%'", "'//'", "'~'", 
+		"'{'", "'}'", "'<'", "'>'", "'=='", "'>='", "'<='", "'<>'", "'!='", "'@'", 
+		"'->'", "'+='", "'-='", "'*='", "'@='", "'/='", "'%='", "'&='", "'|='", 
+		"'^='", "'<<='", "'>>='", "'**='", "'//='"
+	};
+	private static readonly string[] _SymbolicNames = {
+		null, "INDENT", "DEDENT", "STRING", "NUMBER", "INTEGER", "AND", "AS", 
+		"ASSERT", "ASYNC", "AWAIT", "BREAK", "CASE", "CLASS", "CONTINUE", "DEF", 
+		"DEL", "ELIF", "ELSE", "EXCEPT", "FALSE", "FINALLY", "FOR", "FROM", "GLOBAL", 
+		"IF", "IMPORT", "IN", "IS", "LAMBDA", "MATCH", "NONE", "NONLOCAL", "NOT", 
+		"OR", "PASS", "RAISE", "RETURN", "TRUE", "TRY", "UNDERSCORE", "WHILE", 
+		"WITH", "YIELD", "NEWLINE", "NAME", "STRING_LITERAL", "BYTES_LITERAL", 
+		"DECIMAL_INTEGER", "OCT_INTEGER", "HEX_INTEGER", "BIN_INTEGER", "FLOAT_NUMBER", 
+		"IMAG_NUMBER", "DOT", "ELLIPSIS", "STAR", "OPEN_PAREN", "CLOSE_PAREN", 
+		"COMMA", "COLON", "SEMI_COLON", "POWER", "ASSIGN", "OPEN_BRACK", "CLOSE_BRACK", 
+		"OR_OP", "XOR", "AND_OP", "LEFT_SHIFT", "RIGHT_SHIFT", "ADD", "MINUS", 
+		"DIV", "MOD", "IDIV", "NOT_OP", "OPEN_BRACE", "CLOSE_BRACE", "LESS_THAN", 
+		"GREATER_THAN", "EQUALS", "GT_EQ", "LT_EQ", "NOT_EQ_1", "NOT_EQ_2", "AT", 
+		"ARROW", "ADD_ASSIGN", "SUB_ASSIGN", "MULT_ASSIGN", "AT_ASSIGN", "DIV_ASSIGN", 
+		"MOD_ASSIGN", "AND_ASSIGN", "OR_ASSIGN", "XOR_ASSIGN", "LEFT_SHIFT_ASSIGN", 
+		"RIGHT_SHIFT_ASSIGN", "POWER_ASSIGN", "IDIV_ASSIGN", "SKIP_", "UNKNOWN_CHAR"
+	};
+	public static readonly IVocabulary DefaultVocabulary = new Vocabulary(_LiteralNames, _SymbolicNames);
+
+	[NotNull]
+	public override IVocabulary Vocabulary
+	{
+		get
+		{
+			return DefaultVocabulary;
+		}
+	}
+
+	public override string GrammarFileName { get { return "Python3Parser.g4"; } }
+
+	public override string[] RuleNames { get { return ruleNames; } }
+
+	public override int[] SerializedAtn { get { return _serializedATN; } }
+
+	static Python3Parser() {
+		decisionToDFA = new DFA[_ATN.NumberOfDecisions];
+		for (int i = 0; i < _ATN.NumberOfDecisions; i++) {
+			decisionToDFA[i] = new DFA(_ATN.GetDecisionState(i), i);
+		}
+	}
+
+		public Python3Parser(ITokenStream input) : this(input, Console.Out, Console.Error) { }
+
+		public Python3Parser(ITokenStream input, TextWriter output, TextWriter errorOutput)
+		: base(input, output, errorOutput)
+	{
+		Interpreter = new ParserATNSimulator(this, _ATN, decisionToDFA, sharedContextCache);
+	}
+
+	public partial class Single_inputContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode NEWLINE() { return GetToken(Python3Parser.NEWLINE, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public Simple_stmtsContext simple_stmts() {
+			return GetRuleContext<Simple_stmtsContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public Compound_stmtContext compound_stmt() {
+			return GetRuleContext<Compound_stmtContext>(0);
+		}
+		public Single_inputContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_single_input; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitSingle_input(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public Single_inputContext single_input() {
+		Single_inputContext _localctx = new Single_inputContext(Context, State);
+		EnterRule(_localctx, 0, RULE_single_input);
+		try {
+			State = 243;
+			ErrorHandler.Sync(this);
+			switch ( Interpreter.AdaptivePredict(TokenStream,0,Context) ) {
+			case 1:
+				EnterOuterAlt(_localctx, 1);
+				{
+				State = 238;
+				Match(NEWLINE);
+				}
+				break;
+			case 2:
+				EnterOuterAlt(_localctx, 2);
+				{
+				State = 239;
+				simple_stmts();
+				}
+				break;
+			case 3:
+				EnterOuterAlt(_localctx, 3);
+				{
+				State = 240;
+				compound_stmt();
+				State = 241;
+				Match(NEWLINE);
+				}
+				break;
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class File_inputContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode Eof() { return GetToken(Python3Parser.Eof, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode[] NEWLINE() { return GetTokens(Python3Parser.NEWLINE); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode NEWLINE(int i) {
+			return GetToken(Python3Parser.NEWLINE, i);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public StmtContext[] stmt() {
+			return GetRuleContexts<StmtContext>();
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public StmtContext stmt(int i) {
+			return GetRuleContext<StmtContext>(i);
+		}
+		public File_inputContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_file_input; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitFile_input(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public File_inputContext file_input() {
+		File_inputContext _localctx = new File_inputContext(Context, State);
+		EnterRule(_localctx, 2, RULE_file_input);
+		int _la;
+		try {
+			EnterOuterAlt(_localctx, 1);
+			{
+			State = 249;
+			ErrorHandler.Sync(this);
+			_la = TokenStream.LA(1);
+			while ((((_la) & ~0x3f) == 0 && ((1L << _la) & 252271930291384088L) != 0) || ((((_la - 64)) & ~0x3f) == 0 && ((1L << (_la - 64)) & 4206977L) != 0)) {
+				{
+				State = 247;
+				ErrorHandler.Sync(this);
+				switch (TokenStream.LA(1)) {
+				case NEWLINE:
+					{
+					State = 245;
+					Match(NEWLINE);
+					}
+					break;
+				case STRING:
+				case NUMBER:
+				case ASSERT:
+				case ASYNC:
+				case AWAIT:
+				case BREAK:
+				case CLASS:
+				case CONTINUE:
+				case DEF:
+				case DEL:
+				case FALSE:
+				case FOR:
+				case FROM:
+				case GLOBAL:
+				case IF:
+				case IMPORT:
+				case LAMBDA:
+				case MATCH:
+				case NONE:
+				case NONLOCAL:
+				case NOT:
+				case PASS:
+				case RAISE:
+				case RETURN:
+				case TRUE:
+				case TRY:
+				case UNDERSCORE:
+				case WHILE:
+				case WITH:
+				case YIELD:
+				case NAME:
+				case ELLIPSIS:
+				case STAR:
+				case OPEN_PAREN:
+				case OPEN_BRACK:
+				case ADD:
+				case MINUS:
+				case NOT_OP:
+				case OPEN_BRACE:
+				case AT:
+					{
+					State = 246;
+					stmt();
+					}
+					break;
+				default:
+					throw new NoViableAltException(this);
+				}
+				}
+				State = 251;
+				ErrorHandler.Sync(this);
+				_la = TokenStream.LA(1);
+			}
+			State = 252;
+			Match(Eof);
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class Eval_inputContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public TestlistContext testlist() {
+			return GetRuleContext<TestlistContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode Eof() { return GetToken(Python3Parser.Eof, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode[] NEWLINE() { return GetTokens(Python3Parser.NEWLINE); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode NEWLINE(int i) {
+			return GetToken(Python3Parser.NEWLINE, i);
+		}
+		public Eval_inputContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_eval_input; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitEval_input(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public Eval_inputContext eval_input() {
+		Eval_inputContext _localctx = new Eval_inputContext(Context, State);
+		EnterRule(_localctx, 4, RULE_eval_input);
+		int _la;
+		try {
+			EnterOuterAlt(_localctx, 1);
+			{
+			State = 254;
+			testlist();
+			State = 258;
+			ErrorHandler.Sync(this);
+			_la = TokenStream.LA(1);
+			while (_la==NEWLINE) {
+				{
+				{
+				State = 255;
+				Match(NEWLINE);
+				}
+				}
+				State = 260;
+				ErrorHandler.Sync(this);
+				_la = TokenStream.LA(1);
+			}
+			State = 261;
+			Match(Eof);
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class DecoratorContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode AT() { return GetToken(Python3Parser.AT, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public Dotted_nameContext dotted_name() {
+			return GetRuleContext<Dotted_nameContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode NEWLINE() { return GetToken(Python3Parser.NEWLINE, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode OPEN_PAREN() { return GetToken(Python3Parser.OPEN_PAREN, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode CLOSE_PAREN() { return GetToken(Python3Parser.CLOSE_PAREN, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public ArglistContext arglist() {
+			return GetRuleContext<ArglistContext>(0);
+		}
+		public DecoratorContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_decorator; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitDecorator(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public DecoratorContext decorator() {
+		DecoratorContext _localctx = new DecoratorContext(Context, State);
+		EnterRule(_localctx, 6, RULE_decorator);
+		int _la;
+		try {
+			EnterOuterAlt(_localctx, 1);
+			{
+			State = 263;
+			Match(AT);
+			State = 264;
+			dotted_name();
+			State = 270;
+			ErrorHandler.Sync(this);
+			_la = TokenStream.LA(1);
+			if (_la==OPEN_PAREN) {
+				{
+				State = 265;
+				Match(OPEN_PAREN);
+				State = 267;
+				ErrorHandler.Sync(this);
+				_la = TokenStream.LA(1);
+				if ((((_la) & ~0x3f) == 0 && ((1L << _la) & 4863924168670839832L) != 0) || ((((_la - 64)) & ~0x3f) == 0 && ((1L << (_la - 64)) & 12673L) != 0)) {
+					{
+					State = 266;
+					arglist();
+					}
+				}
+
+				State = 269;
+				Match(CLOSE_PAREN);
+				}
+			}
+
+			State = 272;
+			Match(NEWLINE);
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class DecoratorsContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public DecoratorContext[] decorator() {
+			return GetRuleContexts<DecoratorContext>();
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public DecoratorContext decorator(int i) {
+			return GetRuleContext<DecoratorContext>(i);
+		}
+		public DecoratorsContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_decorators; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitDecorators(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public DecoratorsContext decorators() {
+		DecoratorsContext _localctx = new DecoratorsContext(Context, State);
+		EnterRule(_localctx, 8, RULE_decorators);
+		int _la;
+		try {
+			EnterOuterAlt(_localctx, 1);
+			{
+			State = 275;
+			ErrorHandler.Sync(this);
+			_la = TokenStream.LA(1);
+			do {
+				{
+				{
+				State = 274;
+				decorator();
+				}
+				}
+				State = 277;
+				ErrorHandler.Sync(this);
+				_la = TokenStream.LA(1);
+			} while ( _la==AT );
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class DecoratedContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public DecoratorsContext decorators() {
+			return GetRuleContext<DecoratorsContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public ClassdefContext classdef() {
+			return GetRuleContext<ClassdefContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public FuncdefContext funcdef() {
+			return GetRuleContext<FuncdefContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public Async_funcdefContext async_funcdef() {
+			return GetRuleContext<Async_funcdefContext>(0);
+		}
+		public DecoratedContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_decorated; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitDecorated(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public DecoratedContext decorated() {
+		DecoratedContext _localctx = new DecoratedContext(Context, State);
+		EnterRule(_localctx, 10, RULE_decorated);
+		try {
+			EnterOuterAlt(_localctx, 1);
+			{
+			State = 279;
+			decorators();
+			State = 283;
+			ErrorHandler.Sync(this);
+			switch (TokenStream.LA(1)) {
+			case CLASS:
+				{
+				State = 280;
+				classdef();
+				}
+				break;
+			case DEF:
+				{
+				State = 281;
+				funcdef();
+				}
+				break;
+			case ASYNC:
+				{
+				State = 282;
+				async_funcdef();
+				}
+				break;
+			default:
+				throw new NoViableAltException(this);
+			}
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class Async_funcdefContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode ASYNC() { return GetToken(Python3Parser.ASYNC, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public FuncdefContext funcdef() {
+			return GetRuleContext<FuncdefContext>(0);
+		}
+		public Async_funcdefContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_async_funcdef; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitAsync_funcdef(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public Async_funcdefContext async_funcdef() {
+		Async_funcdefContext _localctx = new Async_funcdefContext(Context, State);
+		EnterRule(_localctx, 12, RULE_async_funcdef);
+		try {
+			EnterOuterAlt(_localctx, 1);
+			{
+			State = 285;
+			Match(ASYNC);
+			State = 286;
+			funcdef();
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class FuncdefContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode DEF() { return GetToken(Python3Parser.DEF, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public NameContext name() {
+			return GetRuleContext<NameContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public ParametersContext parameters() {
+			return GetRuleContext<ParametersContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode COLON() { return GetToken(Python3Parser.COLON, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public BlockContext block() {
+			return GetRuleContext<BlockContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode ARROW() { return GetToken(Python3Parser.ARROW, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public TestContext test() {
+			return GetRuleContext<TestContext>(0);
+		}
+		public FuncdefContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_funcdef; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitFuncdef(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public FuncdefContext funcdef() {
+		FuncdefContext _localctx = new FuncdefContext(Context, State);
+		EnterRule(_localctx, 14, RULE_funcdef);
+		int _la;
+		try {
+			EnterOuterAlt(_localctx, 1);
+			{
+			State = 288;
+			Match(DEF);
+			State = 289;
+			name();
+			State = 290;
+			parameters();
+			State = 293;
+			ErrorHandler.Sync(this);
+			_la = TokenStream.LA(1);
+			if (_la==ARROW) {
+				{
+				State = 291;
+				Match(ARROW);
+				State = 292;
+				test();
+				}
+			}
+
+			State = 295;
+			Match(COLON);
+			State = 296;
+			block();
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class ParametersContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode OPEN_PAREN() { return GetToken(Python3Parser.OPEN_PAREN, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode CLOSE_PAREN() { return GetToken(Python3Parser.CLOSE_PAREN, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public TypedargslistContext typedargslist() {
+			return GetRuleContext<TypedargslistContext>(0);
+		}
+		public ParametersContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_parameters; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitParameters(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public ParametersContext parameters() {
+		ParametersContext _localctx = new ParametersContext(Context, State);
+		EnterRule(_localctx, 16, RULE_parameters);
+		int _la;
+		try {
+			EnterOuterAlt(_localctx, 1);
+			{
+			State = 298;
+			Match(OPEN_PAREN);
+			State = 300;
+			ErrorHandler.Sync(this);
+			_la = TokenStream.LA(1);
+			if ((((_la) & ~0x3f) == 0 && ((1L << _la) & 4683779897422774272L) != 0)) {
+				{
+				State = 299;
+				typedargslist();
+				}
+			}
+
+			State = 302;
+			Match(CLOSE_PAREN);
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class TypedargslistContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public TfpdefContext[] tfpdef() {
+			return GetRuleContexts<TfpdefContext>();
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public TfpdefContext tfpdef(int i) {
+			return GetRuleContext<TfpdefContext>(i);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode STAR() { return GetToken(Python3Parser.STAR, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode POWER() { return GetToken(Python3Parser.POWER, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode[] ASSIGN() { return GetTokens(Python3Parser.ASSIGN); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode ASSIGN(int i) {
+			return GetToken(Python3Parser.ASSIGN, i);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public TestContext[] test() {
+			return GetRuleContexts<TestContext>();
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public TestContext test(int i) {
+			return GetRuleContext<TestContext>(i);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode[] COMMA() { return GetTokens(Python3Parser.COMMA); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode COMMA(int i) {
+			return GetToken(Python3Parser.COMMA, i);
+		}
+		public TypedargslistContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_typedargslist; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitTypedargslist(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public TypedargslistContext typedargslist() {
+		TypedargslistContext _localctx = new TypedargslistContext(Context, State);
+		EnterRule(_localctx, 18, RULE_typedargslist);
+		int _la;
+		try {
+			int _alt;
+			EnterOuterAlt(_localctx, 1);
+			{
+			State = 385;
+			ErrorHandler.Sync(this);
+			switch (TokenStream.LA(1)) {
+			case MATCH:
+			case UNDERSCORE:
+			case NAME:
+				{
+				State = 304;
+				tfpdef();
+				State = 307;
+				ErrorHandler.Sync(this);
+				_la = TokenStream.LA(1);
+				if (_la==ASSIGN) {
+					{
+					State = 305;
+					Match(ASSIGN);
+					State = 306;
+					test();
+					}
+				}
+
+				State = 317;
+				ErrorHandler.Sync(this);
+				_alt = Interpreter.AdaptivePredict(TokenStream,12,Context);
+				while ( _alt!=2 && _alt!=global::Antlr4.Runtime.Atn.ATN.INVALID_ALT_NUMBER ) {
+					if ( _alt==1 ) {
+						{
+						{
+						State = 309;
+						Match(COMMA);
+						State = 310;
+						tfpdef();
+						State = 313;
+						ErrorHandler.Sync(this);
+						_la = TokenStream.LA(1);
+						if (_la==ASSIGN) {
+							{
+							State = 311;
+							Match(ASSIGN);
+							State = 312;
+							test();
+							}
+						}
+
+						}
+						} 
+					}
+					State = 319;
+					ErrorHandler.Sync(this);
+					_alt = Interpreter.AdaptivePredict(TokenStream,12,Context);
+				}
+				State = 353;
+				ErrorHandler.Sync(this);
+				_la = TokenStream.LA(1);
+				if (_la==COMMA) {
+					{
+					State = 320;
+					Match(COMMA);
+					State = 351;
+					ErrorHandler.Sync(this);
+					switch (TokenStream.LA(1)) {
+					case STAR:
+						{
+						State = 321;
+						Match(STAR);
+						State = 323;
+						ErrorHandler.Sync(this);
+						_la = TokenStream.LA(1);
+						if ((((_la) & ~0x3f) == 0 && ((1L << _la) & 36284957458432L) != 0)) {
+							{
+							State = 322;
+							tfpdef();
+							}
+						}
+
+						State = 333;
+						ErrorHandler.Sync(this);
+						_alt = Interpreter.AdaptivePredict(TokenStream,15,Context);
+						while ( _alt!=2 && _alt!=global::Antlr4.Runtime.Atn.ATN.INVALID_ALT_NUMBER ) {
+							if ( _alt==1 ) {
+								{
+								{
+								State = 325;
+								Match(COMMA);
+								State = 326;
+								tfpdef();
+								State = 329;
+								ErrorHandler.Sync(this);
+								_la = TokenStream.LA(1);
+								if (_la==ASSIGN) {
+									{
+									State = 327;
+									Match(ASSIGN);
+									State = 328;
+									test();
+									}
+								}
+
+								}
+								} 
+							}
+							State = 335;
+							ErrorHandler.Sync(this);
+							_alt = Interpreter.AdaptivePredict(TokenStream,15,Context);
+						}
+						State = 344;
+						ErrorHandler.Sync(this);
+						_la = TokenStream.LA(1);
+						if (_la==COMMA) {
+							{
+							State = 336;
+							Match(COMMA);
+							State = 342;
+							ErrorHandler.Sync(this);
+							_la = TokenStream.LA(1);
+							if (_la==POWER) {
+								{
+								State = 337;
+								Match(POWER);
+								State = 338;
+								tfpdef();
+								State = 340;
+								ErrorHandler.Sync(this);
+								_la = TokenStream.LA(1);
+								if (_la==COMMA) {
+									{
+									State = 339;
+									Match(COMMA);
+									}
+								}
+
+								}
+							}
+
+							}
+						}
+
+						}
+						break;
+					case POWER:
+						{
+						State = 346;
+						Match(POWER);
+						State = 347;
+						tfpdef();
+						State = 349;
+						ErrorHandler.Sync(this);
+						_la = TokenStream.LA(1);
+						if (_la==COMMA) {
+							{
+							State = 348;
+							Match(COMMA);
+							}
+						}
+
+						}
+						break;
+					case CLOSE_PAREN:
+						break;
+					default:
+						break;
+					}
+					}
+				}
+
+				}
+				break;
+			case STAR:
+				{
+				State = 355;
+				Match(STAR);
+				State = 357;
+				ErrorHandler.Sync(this);
+				_la = TokenStream.LA(1);
+				if ((((_la) & ~0x3f) == 0 && ((1L << _la) & 36284957458432L) != 0)) {
+					{
+					State = 356;
+					tfpdef();
+					}
+				}
+
+				State = 367;
+				ErrorHandler.Sync(this);
+				_alt = Interpreter.AdaptivePredict(TokenStream,24,Context);
+				while ( _alt!=2 && _alt!=global::Antlr4.Runtime.Atn.ATN.INVALID_ALT_NUMBER ) {
+					if ( _alt==1 ) {
+						{
+						{
+						State = 359;
+						Match(COMMA);
+						State = 360;
+						tfpdef();
+						State = 363;
+						ErrorHandler.Sync(this);
+						_la = TokenStream.LA(1);
+						if (_la==ASSIGN) {
+							{
+							State = 361;
+							Match(ASSIGN);
+							State = 362;
+							test();
+							}
+						}
+
+						}
+						} 
+					}
+					State = 369;
+					ErrorHandler.Sync(this);
+					_alt = Interpreter.AdaptivePredict(TokenStream,24,Context);
+				}
+				State = 378;
+				ErrorHandler.Sync(this);
+				_la = TokenStream.LA(1);
+				if (_la==COMMA) {
+					{
+					State = 370;
+					Match(COMMA);
+					State = 376;
+					ErrorHandler.Sync(this);
+					_la = TokenStream.LA(1);
+					if (_la==POWER) {
+						{
+						State = 371;
+						Match(POWER);
+						State = 372;
+						tfpdef();
+						State = 374;
+						ErrorHandler.Sync(this);
+						_la = TokenStream.LA(1);
+						if (_la==COMMA) {
+							{
+							State = 373;
+							Match(COMMA);
+							}
+						}
+
+						}
+					}
+
+					}
+				}
+
+				}
+				break;
+			case POWER:
+				{
+				State = 380;
+				Match(POWER);
+				State = 381;
+				tfpdef();
+				State = 383;
+				ErrorHandler.Sync(this);
+				_la = TokenStream.LA(1);
+				if (_la==COMMA) {
+					{
+					State = 382;
+					Match(COMMA);
+					}
+				}
+
+				}
+				break;
+			default:
+				throw new NoViableAltException(this);
+			}
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class TfpdefContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public NameContext name() {
+			return GetRuleContext<NameContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode COLON() { return GetToken(Python3Parser.COLON, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public TestContext test() {
+			return GetRuleContext<TestContext>(0);
+		}
+		public TfpdefContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_tfpdef; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitTfpdef(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public TfpdefContext tfpdef() {
+		TfpdefContext _localctx = new TfpdefContext(Context, State);
+		EnterRule(_localctx, 20, RULE_tfpdef);
+		int _la;
+		try {
+			EnterOuterAlt(_localctx, 1);
+			{
+			State = 387;
+			name();
+			State = 390;
+			ErrorHandler.Sync(this);
+			_la = TokenStream.LA(1);
+			if (_la==COLON) {
+				{
+				State = 388;
+				Match(COLON);
+				State = 389;
+				test();
+				}
+			}
+
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class VarargslistContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public VfpdefContext[] vfpdef() {
+			return GetRuleContexts<VfpdefContext>();
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public VfpdefContext vfpdef(int i) {
+			return GetRuleContext<VfpdefContext>(i);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode STAR() { return GetToken(Python3Parser.STAR, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode POWER() { return GetToken(Python3Parser.POWER, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode[] ASSIGN() { return GetTokens(Python3Parser.ASSIGN); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode ASSIGN(int i) {
+			return GetToken(Python3Parser.ASSIGN, i);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public TestContext[] test() {
+			return GetRuleContexts<TestContext>();
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public TestContext test(int i) {
+			return GetRuleContext<TestContext>(i);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode[] COMMA() { return GetTokens(Python3Parser.COMMA); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode COMMA(int i) {
+			return GetToken(Python3Parser.COMMA, i);
+		}
+		public VarargslistContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_varargslist; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitVarargslist(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public VarargslistContext varargslist() {
+		VarargslistContext _localctx = new VarargslistContext(Context, State);
+		EnterRule(_localctx, 22, RULE_varargslist);
+		int _la;
+		try {
+			int _alt;
+			EnterOuterAlt(_localctx, 1);
+			{
+			State = 473;
+			ErrorHandler.Sync(this);
+			switch (TokenStream.LA(1)) {
+			case MATCH:
+			case UNDERSCORE:
+			case NAME:
+				{
+				State = 392;
+				vfpdef();
+				State = 395;
+				ErrorHandler.Sync(this);
+				_la = TokenStream.LA(1);
+				if (_la==ASSIGN) {
+					{
+					State = 393;
+					Match(ASSIGN);
+					State = 394;
+					test();
+					}
+				}
+
+				State = 405;
+				ErrorHandler.Sync(this);
+				_alt = Interpreter.AdaptivePredict(TokenStream,33,Context);
+				while ( _alt!=2 && _alt!=global::Antlr4.Runtime.Atn.ATN.INVALID_ALT_NUMBER ) {
+					if ( _alt==1 ) {
+						{
+						{
+						State = 397;
+						Match(COMMA);
+						State = 398;
+						vfpdef();
+						State = 401;
+						ErrorHandler.Sync(this);
+						_la = TokenStream.LA(1);
+						if (_la==ASSIGN) {
+							{
+							State = 399;
+							Match(ASSIGN);
+							State = 400;
+							test();
+							}
+						}
+
+						}
+						} 
+					}
+					State = 407;
+					ErrorHandler.Sync(this);
+					_alt = Interpreter.AdaptivePredict(TokenStream,33,Context);
+				}
+				State = 441;
+				ErrorHandler.Sync(this);
+				_la = TokenStream.LA(1);
+				if (_la==COMMA) {
+					{
+					State = 408;
+					Match(COMMA);
+					State = 439;
+					ErrorHandler.Sync(this);
+					switch (TokenStream.LA(1)) {
+					case STAR:
+						{
+						State = 409;
+						Match(STAR);
+						State = 411;
+						ErrorHandler.Sync(this);
+						_la = TokenStream.LA(1);
+						if ((((_la) & ~0x3f) == 0 && ((1L << _la) & 36284957458432L) != 0)) {
+							{
+							State = 410;
+							vfpdef();
+							}
+						}
+
+						State = 421;
+						ErrorHandler.Sync(this);
+						_alt = Interpreter.AdaptivePredict(TokenStream,36,Context);
+						while ( _alt!=2 && _alt!=global::Antlr4.Runtime.Atn.ATN.INVALID_ALT_NUMBER ) {
+							if ( _alt==1 ) {
+								{
+								{
+								State = 413;
+								Match(COMMA);
+								State = 414;
+								vfpdef();
+								State = 417;
+								ErrorHandler.Sync(this);
+								_la = TokenStream.LA(1);
+								if (_la==ASSIGN) {
+									{
+									State = 415;
+									Match(ASSIGN);
+									State = 416;
+									test();
+									}
+								}
+
+								}
+								} 
+							}
+							State = 423;
+							ErrorHandler.Sync(this);
+							_alt = Interpreter.AdaptivePredict(TokenStream,36,Context);
+						}
+						State = 432;
+						ErrorHandler.Sync(this);
+						_la = TokenStream.LA(1);
+						if (_la==COMMA) {
+							{
+							State = 424;
+							Match(COMMA);
+							State = 430;
+							ErrorHandler.Sync(this);
+							_la = TokenStream.LA(1);
+							if (_la==POWER) {
+								{
+								State = 425;
+								Match(POWER);
+								State = 426;
+								vfpdef();
+								State = 428;
+								ErrorHandler.Sync(this);
+								_la = TokenStream.LA(1);
+								if (_la==COMMA) {
+									{
+									State = 427;
+									Match(COMMA);
+									}
+								}
+
+								}
+							}
+
+							}
+						}
+
+						}
+						break;
+					case POWER:
+						{
+						State = 434;
+						Match(POWER);
+						State = 435;
+						vfpdef();
+						State = 437;
+						ErrorHandler.Sync(this);
+						_la = TokenStream.LA(1);
+						if (_la==COMMA) {
+							{
+							State = 436;
+							Match(COMMA);
+							}
+						}
+
+						}
+						break;
+					case COLON:
+						break;
+					default:
+						break;
+					}
+					}
+				}
+
+				}
+				break;
+			case STAR:
+				{
+				State = 443;
+				Match(STAR);
+				State = 445;
+				ErrorHandler.Sync(this);
+				_la = TokenStream.LA(1);
+				if ((((_la) & ~0x3f) == 0 && ((1L << _la) & 36284957458432L) != 0)) {
+					{
+					State = 444;
+					vfpdef();
+					}
+				}
+
+				State = 455;
+				ErrorHandler.Sync(this);
+				_alt = Interpreter.AdaptivePredict(TokenStream,45,Context);
+				while ( _alt!=2 && _alt!=global::Antlr4.Runtime.Atn.ATN.INVALID_ALT_NUMBER ) {
+					if ( _alt==1 ) {
+						{
+						{
+						State = 447;
+						Match(COMMA);
+						State = 448;
+						vfpdef();
+						State = 451;
+						ErrorHandler.Sync(this);
+						_la = TokenStream.LA(1);
+						if (_la==ASSIGN) {
+							{
+							State = 449;
+							Match(ASSIGN);
+							State = 450;
+							test();
+							}
+						}
+
+						}
+						} 
+					}
+					State = 457;
+					ErrorHandler.Sync(this);
+					_alt = Interpreter.AdaptivePredict(TokenStream,45,Context);
+				}
+				State = 466;
+				ErrorHandler.Sync(this);
+				_la = TokenStream.LA(1);
+				if (_la==COMMA) {
+					{
+					State = 458;
+					Match(COMMA);
+					State = 464;
+					ErrorHandler.Sync(this);
+					_la = TokenStream.LA(1);
+					if (_la==POWER) {
+						{
+						State = 459;
+						Match(POWER);
+						State = 460;
+						vfpdef();
+						State = 462;
+						ErrorHandler.Sync(this);
+						_la = TokenStream.LA(1);
+						if (_la==COMMA) {
+							{
+							State = 461;
+							Match(COMMA);
+							}
+						}
+
+						}
+					}
+
+					}
+				}
+
+				}
+				break;
+			case POWER:
+				{
+				State = 468;
+				Match(POWER);
+				State = 469;
+				vfpdef();
+				State = 471;
+				ErrorHandler.Sync(this);
+				_la = TokenStream.LA(1);
+				if (_la==COMMA) {
+					{
+					State = 470;
+					Match(COMMA);
+					}
+				}
+
+				}
+				break;
+			default:
+				throw new NoViableAltException(this);
+			}
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class VfpdefContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public NameContext name() {
+			return GetRuleContext<NameContext>(0);
+		}
+		public VfpdefContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_vfpdef; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitVfpdef(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public VfpdefContext vfpdef() {
+		VfpdefContext _localctx = new VfpdefContext(Context, State);
+		EnterRule(_localctx, 24, RULE_vfpdef);
+		try {
+			EnterOuterAlt(_localctx, 1);
+			{
+			State = 475;
+			name();
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class StmtContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public Simple_stmtsContext simple_stmts() {
+			return GetRuleContext<Simple_stmtsContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public Compound_stmtContext compound_stmt() {
+			return GetRuleContext<Compound_stmtContext>(0);
+		}
+		public StmtContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_stmt; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitStmt(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public StmtContext stmt() {
+		StmtContext _localctx = new StmtContext(Context, State);
+		EnterRule(_localctx, 26, RULE_stmt);
+		try {
+			State = 479;
+			ErrorHandler.Sync(this);
+			switch ( Interpreter.AdaptivePredict(TokenStream,51,Context) ) {
+			case 1:
+				EnterOuterAlt(_localctx, 1);
+				{
+				State = 477;
+				simple_stmts();
+				}
+				break;
+			case 2:
+				EnterOuterAlt(_localctx, 2);
+				{
+				State = 478;
+				compound_stmt();
+				}
+				break;
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class Simple_stmtsContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public Simple_stmtContext[] simple_stmt() {
+			return GetRuleContexts<Simple_stmtContext>();
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public Simple_stmtContext simple_stmt(int i) {
+			return GetRuleContext<Simple_stmtContext>(i);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode NEWLINE() { return GetToken(Python3Parser.NEWLINE, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode[] SEMI_COLON() { return GetTokens(Python3Parser.SEMI_COLON); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode SEMI_COLON(int i) {
+			return GetToken(Python3Parser.SEMI_COLON, i);
+		}
+		public Simple_stmtsContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_simple_stmts; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitSimple_stmts(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public Simple_stmtsContext simple_stmts() {
+		Simple_stmtsContext _localctx = new Simple_stmtsContext(Context, State);
+		EnterRule(_localctx, 28, RULE_simple_stmts);
+		int _la;
+		try {
+			int _alt;
+			EnterOuterAlt(_localctx, 1);
+			{
+			State = 481;
+			simple_stmt();
+			State = 486;
+			ErrorHandler.Sync(this);
+			_alt = Interpreter.AdaptivePredict(TokenStream,52,Context);
+			while ( _alt!=2 && _alt!=global::Antlr4.Runtime.Atn.ATN.INVALID_ALT_NUMBER ) {
+				if ( _alt==1 ) {
+					{
+					{
+					State = 482;
+					Match(SEMI_COLON);
+					State = 483;
+					simple_stmt();
+					}
+					} 
+				}
+				State = 488;
+				ErrorHandler.Sync(this);
+				_alt = Interpreter.AdaptivePredict(TokenStream,52,Context);
+			}
+			State = 490;
+			ErrorHandler.Sync(this);
+			_la = TokenStream.LA(1);
+			if (_la==SEMI_COLON) {
+				{
+				State = 489;
+				Match(SEMI_COLON);
+				}
+			}
+
+			State = 492;
+			Match(NEWLINE);
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class Simple_stmtContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public Expr_stmtContext expr_stmt() {
+			return GetRuleContext<Expr_stmtContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public Del_stmtContext del_stmt() {
+			return GetRuleContext<Del_stmtContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public Pass_stmtContext pass_stmt() {
+			return GetRuleContext<Pass_stmtContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public Flow_stmtContext flow_stmt() {
+			return GetRuleContext<Flow_stmtContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public Import_stmtContext import_stmt() {
+			return GetRuleContext<Import_stmtContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public Global_stmtContext global_stmt() {
+			return GetRuleContext<Global_stmtContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public Nonlocal_stmtContext nonlocal_stmt() {
+			return GetRuleContext<Nonlocal_stmtContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public Assert_stmtContext assert_stmt() {
+			return GetRuleContext<Assert_stmtContext>(0);
+		}
+		public Simple_stmtContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_simple_stmt; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitSimple_stmt(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public Simple_stmtContext simple_stmt() {
+		Simple_stmtContext _localctx = new Simple_stmtContext(Context, State);
+		EnterRule(_localctx, 30, RULE_simple_stmt);
+		try {
+			EnterOuterAlt(_localctx, 1);
+			{
+			State = 502;
+			ErrorHandler.Sync(this);
+			switch (TokenStream.LA(1)) {
+			case STRING:
+			case NUMBER:
+			case AWAIT:
+			case FALSE:
+			case LAMBDA:
+			case MATCH:
+			case NONE:
+			case NOT:
+			case TRUE:
+			case UNDERSCORE:
+			case NAME:
+			case ELLIPSIS:
+			case STAR:
+			case OPEN_PAREN:
+			case OPEN_BRACK:
+			case ADD:
+			case MINUS:
+			case NOT_OP:
+			case OPEN_BRACE:
+				{
+				State = 494;
+				expr_stmt();
+				}
+				break;
+			case DEL:
+				{
+				State = 495;
+				del_stmt();
+				}
+				break;
+			case PASS:
+				{
+				State = 496;
+				pass_stmt();
+				}
+				break;
+			case BREAK:
+			case CONTINUE:
+			case RAISE:
+			case RETURN:
+			case YIELD:
+				{
+				State = 497;
+				flow_stmt();
+				}
+				break;
+			case FROM:
+			case IMPORT:
+				{
+				State = 498;
+				import_stmt();
+				}
+				break;
+			case GLOBAL:
+				{
+				State = 499;
+				global_stmt();
+				}
+				break;
+			case NONLOCAL:
+				{
+				State = 500;
+				nonlocal_stmt();
+				}
+				break;
+			case ASSERT:
+				{
+				State = 501;
+				assert_stmt();
+				}
+				break;
+			default:
+				throw new NoViableAltException(this);
+			}
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class Expr_stmtContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public Testlist_star_exprContext[] testlist_star_expr() {
+			return GetRuleContexts<Testlist_star_exprContext>();
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public Testlist_star_exprContext testlist_star_expr(int i) {
+			return GetRuleContext<Testlist_star_exprContext>(i);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public AnnassignContext annassign() {
+			return GetRuleContext<AnnassignContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public AugassignContext augassign() {
+			return GetRuleContext<AugassignContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public Yield_exprContext[] yield_expr() {
+			return GetRuleContexts<Yield_exprContext>();
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public Yield_exprContext yield_expr(int i) {
+			return GetRuleContext<Yield_exprContext>(i);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public TestlistContext testlist() {
+			return GetRuleContext<TestlistContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode[] ASSIGN() { return GetTokens(Python3Parser.ASSIGN); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode ASSIGN(int i) {
+			return GetToken(Python3Parser.ASSIGN, i);
+		}
+		public Expr_stmtContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_expr_stmt; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitExpr_stmt(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public Expr_stmtContext expr_stmt() {
+		Expr_stmtContext _localctx = new Expr_stmtContext(Context, State);
+		EnterRule(_localctx, 32, RULE_expr_stmt);
+		int _la;
+		try {
+			EnterOuterAlt(_localctx, 1);
+			{
+			State = 504;
+			testlist_star_expr();
+			State = 521;
+			ErrorHandler.Sync(this);
+			switch (TokenStream.LA(1)) {
+			case COLON:
+				{
+				State = 505;
+				annassign();
+				}
+				break;
+			case ADD_ASSIGN:
+			case SUB_ASSIGN:
+			case MULT_ASSIGN:
+			case AT_ASSIGN:
+			case DIV_ASSIGN:
+			case MOD_ASSIGN:
+			case AND_ASSIGN:
+			case OR_ASSIGN:
+			case XOR_ASSIGN:
+			case LEFT_SHIFT_ASSIGN:
+			case RIGHT_SHIFT_ASSIGN:
+			case POWER_ASSIGN:
+			case IDIV_ASSIGN:
+				{
+				State = 506;
+				augassign();
+				State = 509;
+				ErrorHandler.Sync(this);
+				switch (TokenStream.LA(1)) {
+				case YIELD:
+					{
+					State = 507;
+					yield_expr();
+					}
+					break;
+				case STRING:
+				case NUMBER:
+				case AWAIT:
+				case FALSE:
+				case LAMBDA:
+				case MATCH:
+				case NONE:
+				case NOT:
+				case TRUE:
+				case UNDERSCORE:
+				case NAME:
+				case ELLIPSIS:
+				case OPEN_PAREN:
+				case OPEN_BRACK:
+				case ADD:
+				case MINUS:
+				case NOT_OP:
+				case OPEN_BRACE:
+					{
+					State = 508;
+					testlist();
+					}
+					break;
+				default:
+					throw new NoViableAltException(this);
+				}
+				}
+				break;
+			case NEWLINE:
+			case SEMI_COLON:
+			case ASSIGN:
+				{
+				State = 518;
+				ErrorHandler.Sync(this);
+				_la = TokenStream.LA(1);
+				while (_la==ASSIGN) {
+					{
+					{
+					State = 511;
+					Match(ASSIGN);
+					State = 514;
+					ErrorHandler.Sync(this);
+					switch (TokenStream.LA(1)) {
+					case YIELD:
+						{
+						State = 512;
+						yield_expr();
+						}
+						break;
+					case STRING:
+					case NUMBER:
+					case AWAIT:
+					case FALSE:
+					case LAMBDA:
+					case MATCH:
+					case NONE:
+					case NOT:
+					case TRUE:
+					case UNDERSCORE:
+					case NAME:
+					case ELLIPSIS:
+					case STAR:
+					case OPEN_PAREN:
+					case OPEN_BRACK:
+					case ADD:
+					case MINUS:
+					case NOT_OP:
+					case OPEN_BRACE:
+						{
+						State = 513;
+						testlist_star_expr();
+						}
+						break;
+					default:
+						throw new NoViableAltException(this);
+					}
+					}
+					}
+					State = 520;
+					ErrorHandler.Sync(this);
+					_la = TokenStream.LA(1);
+				}
+				}
+				break;
+			default:
+				throw new NoViableAltException(this);
+			}
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class AnnassignContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode COLON() { return GetToken(Python3Parser.COLON, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public TestContext[] test() {
+			return GetRuleContexts<TestContext>();
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public TestContext test(int i) {
+			return GetRuleContext<TestContext>(i);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode ASSIGN() { return GetToken(Python3Parser.ASSIGN, 0); }
+		public AnnassignContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_annassign; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitAnnassign(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public AnnassignContext annassign() {
+		AnnassignContext _localctx = new AnnassignContext(Context, State);
+		EnterRule(_localctx, 34, RULE_annassign);
+		int _la;
+		try {
+			EnterOuterAlt(_localctx, 1);
+			{
+			State = 523;
+			Match(COLON);
+			State = 524;
+			test();
+			State = 527;
+			ErrorHandler.Sync(this);
+			_la = TokenStream.LA(1);
+			if (_la==ASSIGN) {
+				{
+				State = 525;
+				Match(ASSIGN);
+				State = 526;
+				test();
+				}
+			}
+
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class Testlist_star_exprContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public TestContext[] test() {
+			return GetRuleContexts<TestContext>();
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public TestContext test(int i) {
+			return GetRuleContext<TestContext>(i);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public Star_exprContext[] star_expr() {
+			return GetRuleContexts<Star_exprContext>();
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public Star_exprContext star_expr(int i) {
+			return GetRuleContext<Star_exprContext>(i);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode[] COMMA() { return GetTokens(Python3Parser.COMMA); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode COMMA(int i) {
+			return GetToken(Python3Parser.COMMA, i);
+		}
+		public Testlist_star_exprContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_testlist_star_expr; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitTestlist_star_expr(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public Testlist_star_exprContext testlist_star_expr() {
+		Testlist_star_exprContext _localctx = new Testlist_star_exprContext(Context, State);
+		EnterRule(_localctx, 36, RULE_testlist_star_expr);
+		int _la;
+		try {
+			int _alt;
+			EnterOuterAlt(_localctx, 1);
+			{
+			State = 531;
+			ErrorHandler.Sync(this);
+			switch (TokenStream.LA(1)) {
+			case STRING:
+			case NUMBER:
+			case AWAIT:
+			case FALSE:
+			case LAMBDA:
+			case MATCH:
+			case NONE:
+			case NOT:
+			case TRUE:
+			case UNDERSCORE:
+			case NAME:
+			case ELLIPSIS:
+			case OPEN_PAREN:
+			case OPEN_BRACK:
+			case ADD:
+			case MINUS:
+			case NOT_OP:
+			case OPEN_BRACE:
+				{
+				State = 529;
+				test();
+				}
+				break;
+			case STAR:
+				{
+				State = 530;
+				star_expr();
+				}
+				break;
+			default:
+				throw new NoViableAltException(this);
+			}
+			State = 540;
+			ErrorHandler.Sync(this);
+			_alt = Interpreter.AdaptivePredict(TokenStream,62,Context);
+			while ( _alt!=2 && _alt!=global::Antlr4.Runtime.Atn.ATN.INVALID_ALT_NUMBER ) {
+				if ( _alt==1 ) {
+					{
+					{
+					State = 533;
+					Match(COMMA);
+					State = 536;
+					ErrorHandler.Sync(this);
+					switch (TokenStream.LA(1)) {
+					case STRING:
+					case NUMBER:
+					case AWAIT:
+					case FALSE:
+					case LAMBDA:
+					case MATCH:
+					case NONE:
+					case NOT:
+					case TRUE:
+					case UNDERSCORE:
+					case NAME:
+					case ELLIPSIS:
+					case OPEN_PAREN:
+					case OPEN_BRACK:
+					case ADD:
+					case MINUS:
+					case NOT_OP:
+					case OPEN_BRACE:
+						{
+						State = 534;
+						test();
+						}
+						break;
+					case STAR:
+						{
+						State = 535;
+						star_expr();
+						}
+						break;
+					default:
+						throw new NoViableAltException(this);
+					}
+					}
+					} 
+				}
+				State = 542;
+				ErrorHandler.Sync(this);
+				_alt = Interpreter.AdaptivePredict(TokenStream,62,Context);
+			}
+			State = 544;
+			ErrorHandler.Sync(this);
+			_la = TokenStream.LA(1);
+			if (_la==COMMA) {
+				{
+				State = 543;
+				Match(COMMA);
+				}
+			}
+
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class AugassignContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode ADD_ASSIGN() { return GetToken(Python3Parser.ADD_ASSIGN, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode SUB_ASSIGN() { return GetToken(Python3Parser.SUB_ASSIGN, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode MULT_ASSIGN() { return GetToken(Python3Parser.MULT_ASSIGN, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode AT_ASSIGN() { return GetToken(Python3Parser.AT_ASSIGN, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode DIV_ASSIGN() { return GetToken(Python3Parser.DIV_ASSIGN, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode MOD_ASSIGN() { return GetToken(Python3Parser.MOD_ASSIGN, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode AND_ASSIGN() { return GetToken(Python3Parser.AND_ASSIGN, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode OR_ASSIGN() { return GetToken(Python3Parser.OR_ASSIGN, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode XOR_ASSIGN() { return GetToken(Python3Parser.XOR_ASSIGN, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode LEFT_SHIFT_ASSIGN() { return GetToken(Python3Parser.LEFT_SHIFT_ASSIGN, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode RIGHT_SHIFT_ASSIGN() { return GetToken(Python3Parser.RIGHT_SHIFT_ASSIGN, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode POWER_ASSIGN() { return GetToken(Python3Parser.POWER_ASSIGN, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode IDIV_ASSIGN() { return GetToken(Python3Parser.IDIV_ASSIGN, 0); }
+		public AugassignContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_augassign; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitAugassign(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public AugassignContext augassign() {
+		AugassignContext _localctx = new AugassignContext(Context, State);
+		EnterRule(_localctx, 38, RULE_augassign);
+		int _la;
+		try {
+			EnterOuterAlt(_localctx, 1);
+			{
+			State = 546;
+			_la = TokenStream.LA(1);
+			if ( !(((((_la - 88)) & ~0x3f) == 0 && ((1L << (_la - 88)) & 8191L) != 0)) ) {
+			ErrorHandler.RecoverInline(this);
+			}
+			else {
+				ErrorHandler.ReportMatch(this);
+			    Consume();
+			}
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class Del_stmtContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode DEL() { return GetToken(Python3Parser.DEL, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public ExprlistContext exprlist() {
+			return GetRuleContext<ExprlistContext>(0);
+		}
+		public Del_stmtContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_del_stmt; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitDel_stmt(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public Del_stmtContext del_stmt() {
+		Del_stmtContext _localctx = new Del_stmtContext(Context, State);
+		EnterRule(_localctx, 40, RULE_del_stmt);
+		try {
+			EnterOuterAlt(_localctx, 1);
+			{
+			State = 548;
+			Match(DEL);
+			State = 549;
+			exprlist();
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class Pass_stmtContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode PASS() { return GetToken(Python3Parser.PASS, 0); }
+		public Pass_stmtContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_pass_stmt; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitPass_stmt(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public Pass_stmtContext pass_stmt() {
+		Pass_stmtContext _localctx = new Pass_stmtContext(Context, State);
+		EnterRule(_localctx, 42, RULE_pass_stmt);
+		try {
+			EnterOuterAlt(_localctx, 1);
+			{
+			State = 551;
+			Match(PASS);
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class Flow_stmtContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public Break_stmtContext break_stmt() {
+			return GetRuleContext<Break_stmtContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public Continue_stmtContext continue_stmt() {
+			return GetRuleContext<Continue_stmtContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public Return_stmtContext return_stmt() {
+			return GetRuleContext<Return_stmtContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public Raise_stmtContext raise_stmt() {
+			return GetRuleContext<Raise_stmtContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public Yield_stmtContext yield_stmt() {
+			return GetRuleContext<Yield_stmtContext>(0);
+		}
+		public Flow_stmtContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_flow_stmt; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitFlow_stmt(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public Flow_stmtContext flow_stmt() {
+		Flow_stmtContext _localctx = new Flow_stmtContext(Context, State);
+		EnterRule(_localctx, 44, RULE_flow_stmt);
+		try {
+			State = 558;
+			ErrorHandler.Sync(this);
+			switch (TokenStream.LA(1)) {
+			case BREAK:
+				EnterOuterAlt(_localctx, 1);
+				{
+				State = 553;
+				break_stmt();
+				}
+				break;
+			case CONTINUE:
+				EnterOuterAlt(_localctx, 2);
+				{
+				State = 554;
+				continue_stmt();
+				}
+				break;
+			case RETURN:
+				EnterOuterAlt(_localctx, 3);
+				{
+				State = 555;
+				return_stmt();
+				}
+				break;
+			case RAISE:
+				EnterOuterAlt(_localctx, 4);
+				{
+				State = 556;
+				raise_stmt();
+				}
+				break;
+			case YIELD:
+				EnterOuterAlt(_localctx, 5);
+				{
+				State = 557;
+				yield_stmt();
+				}
+				break;
+			default:
+				throw new NoViableAltException(this);
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class Break_stmtContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode BREAK() { return GetToken(Python3Parser.BREAK, 0); }
+		public Break_stmtContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_break_stmt; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitBreak_stmt(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public Break_stmtContext break_stmt() {
+		Break_stmtContext _localctx = new Break_stmtContext(Context, State);
+		EnterRule(_localctx, 46, RULE_break_stmt);
+		try {
+			EnterOuterAlt(_localctx, 1);
+			{
+			State = 560;
+			Match(BREAK);
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class Continue_stmtContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode CONTINUE() { return GetToken(Python3Parser.CONTINUE, 0); }
+		public Continue_stmtContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_continue_stmt; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitContinue_stmt(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public Continue_stmtContext continue_stmt() {
+		Continue_stmtContext _localctx = new Continue_stmtContext(Context, State);
+		EnterRule(_localctx, 48, RULE_continue_stmt);
+		try {
+			EnterOuterAlt(_localctx, 1);
+			{
+			State = 562;
+			Match(CONTINUE);
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class Return_stmtContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode RETURN() { return GetToken(Python3Parser.RETURN, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public TestlistContext testlist() {
+			return GetRuleContext<TestlistContext>(0);
+		}
+		public Return_stmtContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_return_stmt; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitReturn_stmt(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public Return_stmtContext return_stmt() {
+		Return_stmtContext _localctx = new Return_stmtContext(Context, State);
+		EnterRule(_localctx, 50, RULE_return_stmt);
+		int _la;
+		try {
+			EnterOuterAlt(_localctx, 1);
+			{
+			State = 564;
+			Match(RETURN);
+			State = 566;
+			ErrorHandler.Sync(this);
+			_la = TokenStream.LA(1);
+			if ((((_la) & ~0x3f) == 0 && ((1L << _la) & 180180556205523992L) != 0) || ((((_la - 64)) & ~0x3f) == 0 && ((1L << (_la - 64)) & 12673L) != 0)) {
+				{
+				State = 565;
+				testlist();
+				}
+			}
+
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class Yield_stmtContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public Yield_exprContext yield_expr() {
+			return GetRuleContext<Yield_exprContext>(0);
+		}
+		public Yield_stmtContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_yield_stmt; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitYield_stmt(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public Yield_stmtContext yield_stmt() {
+		Yield_stmtContext _localctx = new Yield_stmtContext(Context, State);
+		EnterRule(_localctx, 52, RULE_yield_stmt);
+		try {
+			EnterOuterAlt(_localctx, 1);
+			{
+			State = 568;
+			yield_expr();
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class Raise_stmtContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode RAISE() { return GetToken(Python3Parser.RAISE, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public TestContext[] test() {
+			return GetRuleContexts<TestContext>();
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public TestContext test(int i) {
+			return GetRuleContext<TestContext>(i);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode FROM() { return GetToken(Python3Parser.FROM, 0); }
+		public Raise_stmtContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_raise_stmt; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitRaise_stmt(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public Raise_stmtContext raise_stmt() {
+		Raise_stmtContext _localctx = new Raise_stmtContext(Context, State);
+		EnterRule(_localctx, 54, RULE_raise_stmt);
+		int _la;
+		try {
+			EnterOuterAlt(_localctx, 1);
+			{
+			State = 570;
+			Match(RAISE);
+			State = 576;
+			ErrorHandler.Sync(this);
+			_la = TokenStream.LA(1);
+			if ((((_la) & ~0x3f) == 0 && ((1L << _la) & 180180556205523992L) != 0) || ((((_la - 64)) & ~0x3f) == 0 && ((1L << (_la - 64)) & 12673L) != 0)) {
+				{
+				State = 571;
+				test();
+				State = 574;
+				ErrorHandler.Sync(this);
+				_la = TokenStream.LA(1);
+				if (_la==FROM) {
+					{
+					State = 572;
+					Match(FROM);
+					State = 573;
+					test();
+					}
+				}
+
+				}
+			}
+
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class Import_stmtContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public Import_nameContext import_name() {
+			return GetRuleContext<Import_nameContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public Import_fromContext import_from() {
+			return GetRuleContext<Import_fromContext>(0);
+		}
+		public Import_stmtContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_import_stmt; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitImport_stmt(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public Import_stmtContext import_stmt() {
+		Import_stmtContext _localctx = new Import_stmtContext(Context, State);
+		EnterRule(_localctx, 56, RULE_import_stmt);
+		try {
+			State = 580;
+			ErrorHandler.Sync(this);
+			switch (TokenStream.LA(1)) {
+			case IMPORT:
+				EnterOuterAlt(_localctx, 1);
+				{
+				State = 578;
+				import_name();
+				}
+				break;
+			case FROM:
+				EnterOuterAlt(_localctx, 2);
+				{
+				State = 579;
+				import_from();
+				}
+				break;
+			default:
+				throw new NoViableAltException(this);
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class Import_nameContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode IMPORT() { return GetToken(Python3Parser.IMPORT, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public Dotted_as_namesContext dotted_as_names() {
+			return GetRuleContext<Dotted_as_namesContext>(0);
+		}
+		public Import_nameContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_import_name; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitImport_name(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public Import_nameContext import_name() {
+		Import_nameContext _localctx = new Import_nameContext(Context, State);
+		EnterRule(_localctx, 58, RULE_import_name);
+		try {
+			EnterOuterAlt(_localctx, 1);
+			{
+			State = 582;
+			Match(IMPORT);
+			State = 583;
+			dotted_as_names();
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class Import_fromContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode FROM() { return GetToken(Python3Parser.FROM, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode IMPORT() { return GetToken(Python3Parser.IMPORT, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public Dotted_nameContext dotted_name() {
+			return GetRuleContext<Dotted_nameContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode STAR() { return GetToken(Python3Parser.STAR, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode OPEN_PAREN() { return GetToken(Python3Parser.OPEN_PAREN, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public Import_as_namesContext import_as_names() {
+			return GetRuleContext<Import_as_namesContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode CLOSE_PAREN() { return GetToken(Python3Parser.CLOSE_PAREN, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode[] DOT() { return GetTokens(Python3Parser.DOT); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode DOT(int i) {
+			return GetToken(Python3Parser.DOT, i);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode[] ELLIPSIS() { return GetTokens(Python3Parser.ELLIPSIS); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode ELLIPSIS(int i) {
+			return GetToken(Python3Parser.ELLIPSIS, i);
+		}
+		public Import_fromContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_import_from; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitImport_from(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public Import_fromContext import_from() {
+		Import_fromContext _localctx = new Import_fromContext(Context, State);
+		EnterRule(_localctx, 60, RULE_import_from);
+		int _la;
+		try {
+			EnterOuterAlt(_localctx, 1);
+			{
+			{
+			State = 585;
+			Match(FROM);
+			State = 598;
+			ErrorHandler.Sync(this);
+			switch ( Interpreter.AdaptivePredict(TokenStream,71,Context) ) {
+			case 1:
+				{
+				State = 589;
+				ErrorHandler.Sync(this);
+				_la = TokenStream.LA(1);
+				while (_la==DOT || _la==ELLIPSIS) {
+					{
+					{
+					State = 586;
+					_la = TokenStream.LA(1);
+					if ( !(_la==DOT || _la==ELLIPSIS) ) {
+					ErrorHandler.RecoverInline(this);
+					}
+					else {
+						ErrorHandler.ReportMatch(this);
+					    Consume();
+					}
+					}
+					}
+					State = 591;
+					ErrorHandler.Sync(this);
+					_la = TokenStream.LA(1);
+				}
+				State = 592;
+				dotted_name();
+				}
+				break;
+			case 2:
+				{
+				State = 594;
+				ErrorHandler.Sync(this);
+				_la = TokenStream.LA(1);
+				do {
+					{
+					{
+					State = 593;
+					_la = TokenStream.LA(1);
+					if ( !(_la==DOT || _la==ELLIPSIS) ) {
+					ErrorHandler.RecoverInline(this);
+					}
+					else {
+						ErrorHandler.ReportMatch(this);
+					    Consume();
+					}
+					}
+					}
+					State = 596;
+					ErrorHandler.Sync(this);
+					_la = TokenStream.LA(1);
+				} while ( _la==DOT || _la==ELLIPSIS );
+				}
+				break;
+			}
+			State = 600;
+			Match(IMPORT);
+			State = 607;
+			ErrorHandler.Sync(this);
+			switch (TokenStream.LA(1)) {
+			case STAR:
+				{
+				State = 601;
+				Match(STAR);
+				}
+				break;
+			case OPEN_PAREN:
+				{
+				State = 602;
+				Match(OPEN_PAREN);
+				State = 603;
+				import_as_names();
+				State = 604;
+				Match(CLOSE_PAREN);
+				}
+				break;
+			case MATCH:
+			case UNDERSCORE:
+			case NAME:
+				{
+				State = 606;
+				import_as_names();
+				}
+				break;
+			default:
+				throw new NoViableAltException(this);
+			}
+			}
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class Import_as_nameContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public NameContext[] name() {
+			return GetRuleContexts<NameContext>();
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public NameContext name(int i) {
+			return GetRuleContext<NameContext>(i);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode AS() { return GetToken(Python3Parser.AS, 0); }
+		public Import_as_nameContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_import_as_name; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitImport_as_name(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public Import_as_nameContext import_as_name() {
+		Import_as_nameContext _localctx = new Import_as_nameContext(Context, State);
+		EnterRule(_localctx, 62, RULE_import_as_name);
+		int _la;
+		try {
+			EnterOuterAlt(_localctx, 1);
+			{
+			State = 609;
+			name();
+			State = 612;
+			ErrorHandler.Sync(this);
+			_la = TokenStream.LA(1);
+			if (_la==AS) {
+				{
+				State = 610;
+				Match(AS);
+				State = 611;
+				name();
+				}
+			}
+
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class Dotted_as_nameContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public Dotted_nameContext dotted_name() {
+			return GetRuleContext<Dotted_nameContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode AS() { return GetToken(Python3Parser.AS, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public NameContext name() {
+			return GetRuleContext<NameContext>(0);
+		}
+		public Dotted_as_nameContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_dotted_as_name; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitDotted_as_name(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public Dotted_as_nameContext dotted_as_name() {
+		Dotted_as_nameContext _localctx = new Dotted_as_nameContext(Context, State);
+		EnterRule(_localctx, 64, RULE_dotted_as_name);
+		int _la;
+		try {
+			EnterOuterAlt(_localctx, 1);
+			{
+			State = 614;
+			dotted_name();
+			State = 617;
+			ErrorHandler.Sync(this);
+			_la = TokenStream.LA(1);
+			if (_la==AS) {
+				{
+				State = 615;
+				Match(AS);
+				State = 616;
+				name();
+				}
+			}
+
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class Import_as_namesContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public Import_as_nameContext[] import_as_name() {
+			return GetRuleContexts<Import_as_nameContext>();
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public Import_as_nameContext import_as_name(int i) {
+			return GetRuleContext<Import_as_nameContext>(i);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode[] COMMA() { return GetTokens(Python3Parser.COMMA); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode COMMA(int i) {
+			return GetToken(Python3Parser.COMMA, i);
+		}
+		public Import_as_namesContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_import_as_names; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitImport_as_names(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public Import_as_namesContext import_as_names() {
+		Import_as_namesContext _localctx = new Import_as_namesContext(Context, State);
+		EnterRule(_localctx, 66, RULE_import_as_names);
+		int _la;
+		try {
+			int _alt;
+			EnterOuterAlt(_localctx, 1);
+			{
+			State = 619;
+			import_as_name();
+			State = 624;
+			ErrorHandler.Sync(this);
+			_alt = Interpreter.AdaptivePredict(TokenStream,75,Context);
+			while ( _alt!=2 && _alt!=global::Antlr4.Runtime.Atn.ATN.INVALID_ALT_NUMBER ) {
+				if ( _alt==1 ) {
+					{
+					{
+					State = 620;
+					Match(COMMA);
+					State = 621;
+					import_as_name();
+					}
+					} 
+				}
+				State = 626;
+				ErrorHandler.Sync(this);
+				_alt = Interpreter.AdaptivePredict(TokenStream,75,Context);
+			}
+			State = 628;
+			ErrorHandler.Sync(this);
+			_la = TokenStream.LA(1);
+			if (_la==COMMA) {
+				{
+				State = 627;
+				Match(COMMA);
+				}
+			}
+
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class Dotted_as_namesContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public Dotted_as_nameContext[] dotted_as_name() {
+			return GetRuleContexts<Dotted_as_nameContext>();
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public Dotted_as_nameContext dotted_as_name(int i) {
+			return GetRuleContext<Dotted_as_nameContext>(i);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode[] COMMA() { return GetTokens(Python3Parser.COMMA); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode COMMA(int i) {
+			return GetToken(Python3Parser.COMMA, i);
+		}
+		public Dotted_as_namesContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_dotted_as_names; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitDotted_as_names(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public Dotted_as_namesContext dotted_as_names() {
+		Dotted_as_namesContext _localctx = new Dotted_as_namesContext(Context, State);
+		EnterRule(_localctx, 68, RULE_dotted_as_names);
+		int _la;
+		try {
+			EnterOuterAlt(_localctx, 1);
+			{
+			State = 630;
+			dotted_as_name();
+			State = 635;
+			ErrorHandler.Sync(this);
+			_la = TokenStream.LA(1);
+			while (_la==COMMA) {
+				{
+				{
+				State = 631;
+				Match(COMMA);
+				State = 632;
+				dotted_as_name();
+				}
+				}
+				State = 637;
+				ErrorHandler.Sync(this);
+				_la = TokenStream.LA(1);
+			}
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class Dotted_nameContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public NameContext[] name() {
+			return GetRuleContexts<NameContext>();
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public NameContext name(int i) {
+			return GetRuleContext<NameContext>(i);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode[] DOT() { return GetTokens(Python3Parser.DOT); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode DOT(int i) {
+			return GetToken(Python3Parser.DOT, i);
+		}
+		public Dotted_nameContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_dotted_name; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitDotted_name(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public Dotted_nameContext dotted_name() {
+		Dotted_nameContext _localctx = new Dotted_nameContext(Context, State);
+		EnterRule(_localctx, 70, RULE_dotted_name);
+		int _la;
+		try {
+			EnterOuterAlt(_localctx, 1);
+			{
+			State = 638;
+			name();
+			State = 643;
+			ErrorHandler.Sync(this);
+			_la = TokenStream.LA(1);
+			while (_la==DOT) {
+				{
+				{
+				State = 639;
+				Match(DOT);
+				State = 640;
+				name();
+				}
+				}
+				State = 645;
+				ErrorHandler.Sync(this);
+				_la = TokenStream.LA(1);
+			}
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class Global_stmtContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode GLOBAL() { return GetToken(Python3Parser.GLOBAL, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public NameContext[] name() {
+			return GetRuleContexts<NameContext>();
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public NameContext name(int i) {
+			return GetRuleContext<NameContext>(i);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode[] COMMA() { return GetTokens(Python3Parser.COMMA); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode COMMA(int i) {
+			return GetToken(Python3Parser.COMMA, i);
+		}
+		public Global_stmtContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_global_stmt; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitGlobal_stmt(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public Global_stmtContext global_stmt() {
+		Global_stmtContext _localctx = new Global_stmtContext(Context, State);
+		EnterRule(_localctx, 72, RULE_global_stmt);
+		int _la;
+		try {
+			EnterOuterAlt(_localctx, 1);
+			{
+			State = 646;
+			Match(GLOBAL);
+			State = 647;
+			name();
+			State = 652;
+			ErrorHandler.Sync(this);
+			_la = TokenStream.LA(1);
+			while (_la==COMMA) {
+				{
+				{
+				State = 648;
+				Match(COMMA);
+				State = 649;
+				name();
+				}
+				}
+				State = 654;
+				ErrorHandler.Sync(this);
+				_la = TokenStream.LA(1);
+			}
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class Nonlocal_stmtContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode NONLOCAL() { return GetToken(Python3Parser.NONLOCAL, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public NameContext[] name() {
+			return GetRuleContexts<NameContext>();
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public NameContext name(int i) {
+			return GetRuleContext<NameContext>(i);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode[] COMMA() { return GetTokens(Python3Parser.COMMA); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode COMMA(int i) {
+			return GetToken(Python3Parser.COMMA, i);
+		}
+		public Nonlocal_stmtContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_nonlocal_stmt; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitNonlocal_stmt(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public Nonlocal_stmtContext nonlocal_stmt() {
+		Nonlocal_stmtContext _localctx = new Nonlocal_stmtContext(Context, State);
+		EnterRule(_localctx, 74, RULE_nonlocal_stmt);
+		int _la;
+		try {
+			EnterOuterAlt(_localctx, 1);
+			{
+			State = 655;
+			Match(NONLOCAL);
+			State = 656;
+			name();
+			State = 661;
+			ErrorHandler.Sync(this);
+			_la = TokenStream.LA(1);
+			while (_la==COMMA) {
+				{
+				{
+				State = 657;
+				Match(COMMA);
+				State = 658;
+				name();
+				}
+				}
+				State = 663;
+				ErrorHandler.Sync(this);
+				_la = TokenStream.LA(1);
+			}
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class Assert_stmtContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode ASSERT() { return GetToken(Python3Parser.ASSERT, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public TestContext[] test() {
+			return GetRuleContexts<TestContext>();
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public TestContext test(int i) {
+			return GetRuleContext<TestContext>(i);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode COMMA() { return GetToken(Python3Parser.COMMA, 0); }
+		public Assert_stmtContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_assert_stmt; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitAssert_stmt(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public Assert_stmtContext assert_stmt() {
+		Assert_stmtContext _localctx = new Assert_stmtContext(Context, State);
+		EnterRule(_localctx, 76, RULE_assert_stmt);
+		int _la;
+		try {
+			EnterOuterAlt(_localctx, 1);
+			{
+			State = 664;
+			Match(ASSERT);
+			State = 665;
+			test();
+			State = 668;
+			ErrorHandler.Sync(this);
+			_la = TokenStream.LA(1);
+			if (_la==COMMA) {
+				{
+				State = 666;
+				Match(COMMA);
+				State = 667;
+				test();
+				}
+			}
+
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class Compound_stmtContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public If_stmtContext if_stmt() {
+			return GetRuleContext<If_stmtContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public While_stmtContext while_stmt() {
+			return GetRuleContext<While_stmtContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public For_stmtContext for_stmt() {
+			return GetRuleContext<For_stmtContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public Try_stmtContext try_stmt() {
+			return GetRuleContext<Try_stmtContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public With_stmtContext with_stmt() {
+			return GetRuleContext<With_stmtContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public FuncdefContext funcdef() {
+			return GetRuleContext<FuncdefContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public ClassdefContext classdef() {
+			return GetRuleContext<ClassdefContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public DecoratedContext decorated() {
+			return GetRuleContext<DecoratedContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public Async_stmtContext async_stmt() {
+			return GetRuleContext<Async_stmtContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public Match_stmtContext match_stmt() {
+			return GetRuleContext<Match_stmtContext>(0);
+		}
+		public Compound_stmtContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_compound_stmt; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitCompound_stmt(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public Compound_stmtContext compound_stmt() {
+		Compound_stmtContext _localctx = new Compound_stmtContext(Context, State);
+		EnterRule(_localctx, 78, RULE_compound_stmt);
+		try {
+			State = 680;
+			ErrorHandler.Sync(this);
+			switch (TokenStream.LA(1)) {
+			case IF:
+				EnterOuterAlt(_localctx, 1);
+				{
+				State = 670;
+				if_stmt();
+				}
+				break;
+			case WHILE:
+				EnterOuterAlt(_localctx, 2);
+				{
+				State = 671;
+				while_stmt();
+				}
+				break;
+			case FOR:
+				EnterOuterAlt(_localctx, 3);
+				{
+				State = 672;
+				for_stmt();
+				}
+				break;
+			case TRY:
+				EnterOuterAlt(_localctx, 4);
+				{
+				State = 673;
+				try_stmt();
+				}
+				break;
+			case WITH:
+				EnterOuterAlt(_localctx, 5);
+				{
+				State = 674;
+				with_stmt();
+				}
+				break;
+			case DEF:
+				EnterOuterAlt(_localctx, 6);
+				{
+				State = 675;
+				funcdef();
+				}
+				break;
+			case CLASS:
+				EnterOuterAlt(_localctx, 7);
+				{
+				State = 676;
+				classdef();
+				}
+				break;
+			case AT:
+				EnterOuterAlt(_localctx, 8);
+				{
+				State = 677;
+				decorated();
+				}
+				break;
+			case ASYNC:
+				EnterOuterAlt(_localctx, 9);
+				{
+				State = 678;
+				async_stmt();
+				}
+				break;
+			case MATCH:
+				EnterOuterAlt(_localctx, 10);
+				{
+				State = 679;
+				match_stmt();
+				}
+				break;
+			default:
+				throw new NoViableAltException(this);
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class Async_stmtContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode ASYNC() { return GetToken(Python3Parser.ASYNC, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public FuncdefContext funcdef() {
+			return GetRuleContext<FuncdefContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public With_stmtContext with_stmt() {
+			return GetRuleContext<With_stmtContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public For_stmtContext for_stmt() {
+			return GetRuleContext<For_stmtContext>(0);
+		}
+		public Async_stmtContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_async_stmt; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitAsync_stmt(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public Async_stmtContext async_stmt() {
+		Async_stmtContext _localctx = new Async_stmtContext(Context, State);
+		EnterRule(_localctx, 80, RULE_async_stmt);
+		try {
+			EnterOuterAlt(_localctx, 1);
+			{
+			State = 682;
+			Match(ASYNC);
+			State = 686;
+			ErrorHandler.Sync(this);
+			switch (TokenStream.LA(1)) {
+			case DEF:
+				{
+				State = 683;
+				funcdef();
+				}
+				break;
+			case WITH:
+				{
+				State = 684;
+				with_stmt();
+				}
+				break;
+			case FOR:
+				{
+				State = 685;
+				for_stmt();
+				}
+				break;
+			default:
+				throw new NoViableAltException(this);
+			}
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class If_stmtContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode IF() { return GetToken(Python3Parser.IF, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public TestContext[] test() {
+			return GetRuleContexts<TestContext>();
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public TestContext test(int i) {
+			return GetRuleContext<TestContext>(i);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode[] COLON() { return GetTokens(Python3Parser.COLON); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode COLON(int i) {
+			return GetToken(Python3Parser.COLON, i);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public BlockContext[] block() {
+			return GetRuleContexts<BlockContext>();
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public BlockContext block(int i) {
+			return GetRuleContext<BlockContext>(i);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode[] ELIF() { return GetTokens(Python3Parser.ELIF); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode ELIF(int i) {
+			return GetToken(Python3Parser.ELIF, i);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode ELSE() { return GetToken(Python3Parser.ELSE, 0); }
+		public If_stmtContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_if_stmt; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitIf_stmt(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public If_stmtContext if_stmt() {
+		If_stmtContext _localctx = new If_stmtContext(Context, State);
+		EnterRule(_localctx, 82, RULE_if_stmt);
+		int _la;
+		try {
+			EnterOuterAlt(_localctx, 1);
+			{
+			State = 688;
+			Match(IF);
+			State = 689;
+			test();
+			State = 690;
+			Match(COLON);
+			State = 691;
+			block();
+			State = 699;
+			ErrorHandler.Sync(this);
+			_la = TokenStream.LA(1);
+			while (_la==ELIF) {
+				{
+				{
+				State = 692;
+				Match(ELIF);
+				State = 693;
+				test();
+				State = 694;
+				Match(COLON);
+				State = 695;
+				block();
+				}
+				}
+				State = 701;
+				ErrorHandler.Sync(this);
+				_la = TokenStream.LA(1);
+			}
+			State = 705;
+			ErrorHandler.Sync(this);
+			_la = TokenStream.LA(1);
+			if (_la==ELSE) {
+				{
+				State = 702;
+				Match(ELSE);
+				State = 703;
+				Match(COLON);
+				State = 704;
+				block();
+				}
+			}
+
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class While_stmtContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode WHILE() { return GetToken(Python3Parser.WHILE, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public TestContext test() {
+			return GetRuleContext<TestContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode[] COLON() { return GetTokens(Python3Parser.COLON); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode COLON(int i) {
+			return GetToken(Python3Parser.COLON, i);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public BlockContext[] block() {
+			return GetRuleContexts<BlockContext>();
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public BlockContext block(int i) {
+			return GetRuleContext<BlockContext>(i);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode ELSE() { return GetToken(Python3Parser.ELSE, 0); }
+		public While_stmtContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_while_stmt; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitWhile_stmt(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public While_stmtContext while_stmt() {
+		While_stmtContext _localctx = new While_stmtContext(Context, State);
+		EnterRule(_localctx, 84, RULE_while_stmt);
+		int _la;
+		try {
+			EnterOuterAlt(_localctx, 1);
+			{
+			State = 707;
+			Match(WHILE);
+			State = 708;
+			test();
+			State = 709;
+			Match(COLON);
+			State = 710;
+			block();
+			State = 714;
+			ErrorHandler.Sync(this);
+			_la = TokenStream.LA(1);
+			if (_la==ELSE) {
+				{
+				State = 711;
+				Match(ELSE);
+				State = 712;
+				Match(COLON);
+				State = 713;
+				block();
+				}
+			}
+
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class For_stmtContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode FOR() { return GetToken(Python3Parser.FOR, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public ExprlistContext exprlist() {
+			return GetRuleContext<ExprlistContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode IN() { return GetToken(Python3Parser.IN, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public TestlistContext testlist() {
+			return GetRuleContext<TestlistContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode[] COLON() { return GetTokens(Python3Parser.COLON); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode COLON(int i) {
+			return GetToken(Python3Parser.COLON, i);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public BlockContext[] block() {
+			return GetRuleContexts<BlockContext>();
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public BlockContext block(int i) {
+			return GetRuleContext<BlockContext>(i);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode ELSE() { return GetToken(Python3Parser.ELSE, 0); }
+		public For_stmtContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_for_stmt; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitFor_stmt(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public For_stmtContext for_stmt() {
+		For_stmtContext _localctx = new For_stmtContext(Context, State);
+		EnterRule(_localctx, 86, RULE_for_stmt);
+		int _la;
+		try {
+			EnterOuterAlt(_localctx, 1);
+			{
+			State = 716;
+			Match(FOR);
+			State = 717;
+			exprlist();
+			State = 718;
+			Match(IN);
+			State = 719;
+			testlist();
+			State = 720;
+			Match(COLON);
+			State = 721;
+			block();
+			State = 725;
+			ErrorHandler.Sync(this);
+			_la = TokenStream.LA(1);
+			if (_la==ELSE) {
+				{
+				State = 722;
+				Match(ELSE);
+				State = 723;
+				Match(COLON);
+				State = 724;
+				block();
+				}
+			}
+
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class Try_stmtContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode TRY() { return GetToken(Python3Parser.TRY, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode[] COLON() { return GetTokens(Python3Parser.COLON); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode COLON(int i) {
+			return GetToken(Python3Parser.COLON, i);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public BlockContext[] block() {
+			return GetRuleContexts<BlockContext>();
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public BlockContext block(int i) {
+			return GetRuleContext<BlockContext>(i);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode FINALLY() { return GetToken(Python3Parser.FINALLY, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public Except_clauseContext[] except_clause() {
+			return GetRuleContexts<Except_clauseContext>();
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public Except_clauseContext except_clause(int i) {
+			return GetRuleContext<Except_clauseContext>(i);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode ELSE() { return GetToken(Python3Parser.ELSE, 0); }
+		public Try_stmtContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_try_stmt; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitTry_stmt(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public Try_stmtContext try_stmt() {
+		Try_stmtContext _localctx = new Try_stmtContext(Context, State);
+		EnterRule(_localctx, 88, RULE_try_stmt);
+		int _la;
+		try {
+			EnterOuterAlt(_localctx, 1);
+			{
+			{
+			State = 727;
+			Match(TRY);
+			State = 728;
+			Match(COLON);
+			State = 729;
+			block();
+			State = 751;
+			ErrorHandler.Sync(this);
+			switch (TokenStream.LA(1)) {
+			case EXCEPT:
+				{
+				State = 734;
+				ErrorHandler.Sync(this);
+				_la = TokenStream.LA(1);
+				do {
+					{
+					{
+					State = 730;
+					except_clause();
+					State = 731;
+					Match(COLON);
+					State = 732;
+					block();
+					}
+					}
+					State = 736;
+					ErrorHandler.Sync(this);
+					_la = TokenStream.LA(1);
+				} while ( _la==EXCEPT );
+				State = 741;
+				ErrorHandler.Sync(this);
+				_la = TokenStream.LA(1);
+				if (_la==ELSE) {
+					{
+					State = 738;
+					Match(ELSE);
+					State = 739;
+					Match(COLON);
+					State = 740;
+					block();
+					}
+				}
+
+				State = 746;
+				ErrorHandler.Sync(this);
+				_la = TokenStream.LA(1);
+				if (_la==FINALLY) {
+					{
+					State = 743;
+					Match(FINALLY);
+					State = 744;
+					Match(COLON);
+					State = 745;
+					block();
+					}
+				}
+
+				}
+				break;
+			case FINALLY:
+				{
+				State = 748;
+				Match(FINALLY);
+				State = 749;
+				Match(COLON);
+				State = 750;
+				block();
+				}
+				break;
+			default:
+				throw new NoViableAltException(this);
+			}
+			}
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class With_stmtContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode WITH() { return GetToken(Python3Parser.WITH, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public With_itemContext[] with_item() {
+			return GetRuleContexts<With_itemContext>();
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public With_itemContext with_item(int i) {
+			return GetRuleContext<With_itemContext>(i);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode COLON() { return GetToken(Python3Parser.COLON, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public BlockContext block() {
+			return GetRuleContext<BlockContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode[] COMMA() { return GetTokens(Python3Parser.COMMA); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode COMMA(int i) {
+			return GetToken(Python3Parser.COMMA, i);
+		}
+		public With_stmtContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_with_stmt; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitWith_stmt(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public With_stmtContext with_stmt() {
+		With_stmtContext _localctx = new With_stmtContext(Context, State);
+		EnterRule(_localctx, 90, RULE_with_stmt);
+		int _la;
+		try {
+			EnterOuterAlt(_localctx, 1);
+			{
+			State = 753;
+			Match(WITH);
+			State = 754;
+			with_item();
+			State = 759;
+			ErrorHandler.Sync(this);
+			_la = TokenStream.LA(1);
+			while (_la==COMMA) {
+				{
+				{
+				State = 755;
+				Match(COMMA);
+				State = 756;
+				with_item();
+				}
+				}
+				State = 761;
+				ErrorHandler.Sync(this);
+				_la = TokenStream.LA(1);
+			}
+			State = 762;
+			Match(COLON);
+			State = 763;
+			block();
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class With_itemContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public TestContext test() {
+			return GetRuleContext<TestContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode AS() { return GetToken(Python3Parser.AS, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public ExprContext expr() {
+			return GetRuleContext<ExprContext>(0);
+		}
+		public With_itemContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_with_item; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitWith_item(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public With_itemContext with_item() {
+		With_itemContext _localctx = new With_itemContext(Context, State);
+		EnterRule(_localctx, 92, RULE_with_item);
+		int _la;
+		try {
+			EnterOuterAlt(_localctx, 1);
+			{
+			State = 765;
+			test();
+			State = 768;
+			ErrorHandler.Sync(this);
+			_la = TokenStream.LA(1);
+			if (_la==AS) {
+				{
+				State = 766;
+				Match(AS);
+				State = 767;
+				expr(0);
+				}
+			}
+
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class Except_clauseContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode EXCEPT() { return GetToken(Python3Parser.EXCEPT, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public TestContext test() {
+			return GetRuleContext<TestContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode AS() { return GetToken(Python3Parser.AS, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public NameContext name() {
+			return GetRuleContext<NameContext>(0);
+		}
+		public Except_clauseContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_except_clause; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitExcept_clause(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public Except_clauseContext except_clause() {
+		Except_clauseContext _localctx = new Except_clauseContext(Context, State);
+		EnterRule(_localctx, 94, RULE_except_clause);
+		int _la;
+		try {
+			EnterOuterAlt(_localctx, 1);
+			{
+			State = 770;
+			Match(EXCEPT);
+			State = 776;
+			ErrorHandler.Sync(this);
+			_la = TokenStream.LA(1);
+			if ((((_la) & ~0x3f) == 0 && ((1L << _la) & 180180556205523992L) != 0) || ((((_la - 64)) & ~0x3f) == 0 && ((1L << (_la - 64)) & 12673L) != 0)) {
+				{
+				State = 771;
+				test();
+				State = 774;
+				ErrorHandler.Sync(this);
+				_la = TokenStream.LA(1);
+				if (_la==AS) {
+					{
+					State = 772;
+					Match(AS);
+					State = 773;
+					name();
+					}
+				}
+
+				}
+			}
+
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class BlockContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public Simple_stmtsContext simple_stmts() {
+			return GetRuleContext<Simple_stmtsContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode NEWLINE() { return GetToken(Python3Parser.NEWLINE, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode INDENT() { return GetToken(Python3Parser.INDENT, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode DEDENT() { return GetToken(Python3Parser.DEDENT, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public StmtContext[] stmt() {
+			return GetRuleContexts<StmtContext>();
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public StmtContext stmt(int i) {
+			return GetRuleContext<StmtContext>(i);
+		}
+		public BlockContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_block; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitBlock(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public BlockContext block() {
+		BlockContext _localctx = new BlockContext(Context, State);
+		EnterRule(_localctx, 96, RULE_block);
+		int _la;
+		try {
+			State = 788;
+			ErrorHandler.Sync(this);
+			switch (TokenStream.LA(1)) {
+			case STRING:
+			case NUMBER:
+			case ASSERT:
+			case AWAIT:
+			case BREAK:
+			case CONTINUE:
+			case DEL:
+			case FALSE:
+			case FROM:
+			case GLOBAL:
+			case IMPORT:
+			case LAMBDA:
+			case MATCH:
+			case NONE:
+			case NONLOCAL:
+			case NOT:
+			case PASS:
+			case RAISE:
+			case RETURN:
+			case TRUE:
+			case UNDERSCORE:
+			case YIELD:
+			case NAME:
+			case ELLIPSIS:
+			case STAR:
+			case OPEN_PAREN:
+			case OPEN_BRACK:
+			case ADD:
+			case MINUS:
+			case NOT_OP:
+			case OPEN_BRACE:
+				EnterOuterAlt(_localctx, 1);
+				{
+				State = 778;
+				simple_stmts();
+				}
+				break;
+			case NEWLINE:
+				EnterOuterAlt(_localctx, 2);
+				{
+				State = 779;
+				Match(NEWLINE);
+				State = 780;
+				Match(INDENT);
+				State = 782;
+				ErrorHandler.Sync(this);
+				_la = TokenStream.LA(1);
+				do {
+					{
+					{
+					State = 781;
+					stmt();
+					}
+					}
+					State = 784;
+					ErrorHandler.Sync(this);
+					_la = TokenStream.LA(1);
+				} while ( (((_la) & ~0x3f) == 0 && ((1L << _la) & 252254338105339672L) != 0) || ((((_la - 64)) & ~0x3f) == 0 && ((1L << (_la - 64)) & 4206977L) != 0) );
+				State = 786;
+				Match(DEDENT);
+				}
+				break;
+			default:
+				throw new NoViableAltException(this);
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class Match_stmtContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode MATCH() { return GetToken(Python3Parser.MATCH, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public Subject_exprContext subject_expr() {
+			return GetRuleContext<Subject_exprContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode COLON() { return GetToken(Python3Parser.COLON, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode NEWLINE() { return GetToken(Python3Parser.NEWLINE, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode INDENT() { return GetToken(Python3Parser.INDENT, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode DEDENT() { return GetToken(Python3Parser.DEDENT, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public Case_blockContext[] case_block() {
+			return GetRuleContexts<Case_blockContext>();
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public Case_blockContext case_block(int i) {
+			return GetRuleContext<Case_blockContext>(i);
+		}
+		public Match_stmtContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_match_stmt; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitMatch_stmt(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public Match_stmtContext match_stmt() {
+		Match_stmtContext _localctx = new Match_stmtContext(Context, State);
+		EnterRule(_localctx, 98, RULE_match_stmt);
+		int _la;
+		try {
+			EnterOuterAlt(_localctx, 1);
+			{
+			State = 790;
+			Match(MATCH);
+			State = 791;
+			subject_expr();
+			State = 792;
+			Match(COLON);
+			State = 793;
+			Match(NEWLINE);
+			State = 794;
+			Match(INDENT);
+			State = 796;
+			ErrorHandler.Sync(this);
+			_la = TokenStream.LA(1);
+			do {
+				{
+				{
+				State = 795;
+				case_block();
+				}
+				}
+				State = 798;
+				ErrorHandler.Sync(this);
+				_la = TokenStream.LA(1);
+			} while ( _la==CASE );
+			State = 800;
+			Match(DEDENT);
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class Subject_exprContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public Star_named_expressionContext star_named_expression() {
+			return GetRuleContext<Star_named_expressionContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode COMMA() { return GetToken(Python3Parser.COMMA, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public Star_named_expressionsContext star_named_expressions() {
+			return GetRuleContext<Star_named_expressionsContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public TestContext test() {
+			return GetRuleContext<TestContext>(0);
+		}
+		public Subject_exprContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_subject_expr; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitSubject_expr(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public Subject_exprContext subject_expr() {
+		Subject_exprContext _localctx = new Subject_exprContext(Context, State);
+		EnterRule(_localctx, 100, RULE_subject_expr);
+		int _la;
+		try {
+			State = 808;
+			ErrorHandler.Sync(this);
+			switch ( Interpreter.AdaptivePredict(TokenStream,100,Context) ) {
+			case 1:
+				EnterOuterAlt(_localctx, 1);
+				{
+				State = 802;
+				star_named_expression();
+				State = 803;
+				Match(COMMA);
+				State = 805;
+				ErrorHandler.Sync(this);
+				_la = TokenStream.LA(1);
+				if (_la==COMMA) {
+					{
+					State = 804;
+					star_named_expressions();
+					}
+				}
+
+				}
+				break;
+			case 2:
+				EnterOuterAlt(_localctx, 2);
+				{
+				State = 807;
+				test();
+				}
+				break;
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class Star_named_expressionsContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode[] COMMA() { return GetTokens(Python3Parser.COMMA); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode COMMA(int i) {
+			return GetToken(Python3Parser.COMMA, i);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public Star_named_expressionContext[] star_named_expression() {
+			return GetRuleContexts<Star_named_expressionContext>();
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public Star_named_expressionContext star_named_expression(int i) {
+			return GetRuleContext<Star_named_expressionContext>(i);
+		}
+		public Star_named_expressionsContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_star_named_expressions; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitStar_named_expressions(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public Star_named_expressionsContext star_named_expressions() {
+		Star_named_expressionsContext _localctx = new Star_named_expressionsContext(Context, State);
+		EnterRule(_localctx, 102, RULE_star_named_expressions);
+		int _la;
+		try {
+			EnterOuterAlt(_localctx, 1);
+			{
+			State = 810;
+			Match(COMMA);
+			State = 812;
+			ErrorHandler.Sync(this);
+			_la = TokenStream.LA(1);
+			do {
+				{
+				{
+				State = 811;
+				star_named_expression();
+				}
+				}
+				State = 814;
+				ErrorHandler.Sync(this);
+				_la = TokenStream.LA(1);
+			} while ( (((_la) & ~0x3f) == 0 && ((1L << _la) & 252238150243451928L) != 0) || ((((_la - 64)) & ~0x3f) == 0 && ((1L << (_la - 64)) & 12673L) != 0) );
+			State = 817;
+			ErrorHandler.Sync(this);
+			_la = TokenStream.LA(1);
+			if (_la==COMMA) {
+				{
+				State = 816;
+				Match(COMMA);
+				}
+			}
+
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class Star_named_expressionContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode STAR() { return GetToken(Python3Parser.STAR, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public ExprContext expr() {
+			return GetRuleContext<ExprContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public TestContext test() {
+			return GetRuleContext<TestContext>(0);
+		}
+		public Star_named_expressionContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_star_named_expression; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitStar_named_expression(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public Star_named_expressionContext star_named_expression() {
+		Star_named_expressionContext _localctx = new Star_named_expressionContext(Context, State);
+		EnterRule(_localctx, 104, RULE_star_named_expression);
+		try {
+			State = 822;
+			ErrorHandler.Sync(this);
+			switch (TokenStream.LA(1)) {
+			case STAR:
+				EnterOuterAlt(_localctx, 1);
+				{
+				State = 819;
+				Match(STAR);
+				State = 820;
+				expr(0);
+				}
+				break;
+			case STRING:
+			case NUMBER:
+			case AWAIT:
+			case FALSE:
+			case LAMBDA:
+			case MATCH:
+			case NONE:
+			case NOT:
+			case TRUE:
+			case UNDERSCORE:
+			case NAME:
+			case ELLIPSIS:
+			case OPEN_PAREN:
+			case OPEN_BRACK:
+			case ADD:
+			case MINUS:
+			case NOT_OP:
+			case OPEN_BRACE:
+				EnterOuterAlt(_localctx, 2);
+				{
+				State = 821;
+				test();
+				}
+				break;
+			default:
+				throw new NoViableAltException(this);
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class Case_blockContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode CASE() { return GetToken(Python3Parser.CASE, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public PatternsContext patterns() {
+			return GetRuleContext<PatternsContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode COLON() { return GetToken(Python3Parser.COLON, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public BlockContext block() {
+			return GetRuleContext<BlockContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public GuardContext guard() {
+			return GetRuleContext<GuardContext>(0);
+		}
+		public Case_blockContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_case_block; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitCase_block(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public Case_blockContext case_block() {
+		Case_blockContext _localctx = new Case_blockContext(Context, State);
+		EnterRule(_localctx, 106, RULE_case_block);
+		int _la;
+		try {
+			EnterOuterAlt(_localctx, 1);
+			{
+			State = 824;
+			Match(CASE);
+			State = 825;
+			patterns();
+			State = 827;
+			ErrorHandler.Sync(this);
+			_la = TokenStream.LA(1);
+			if (_la==IF) {
+				{
+				State = 826;
+				guard();
+				}
+			}
+
+			State = 829;
+			Match(COLON);
+			State = 830;
+			block();
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class GuardContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode IF() { return GetToken(Python3Parser.IF, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public TestContext test() {
+			return GetRuleContext<TestContext>(0);
+		}
+		public GuardContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_guard; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitGuard(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public GuardContext guard() {
+		GuardContext _localctx = new GuardContext(Context, State);
+		EnterRule(_localctx, 108, RULE_guard);
+		try {
+			EnterOuterAlt(_localctx, 1);
+			{
+			State = 832;
+			Match(IF);
+			State = 833;
+			test();
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class PatternsContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public Open_sequence_patternContext open_sequence_pattern() {
+			return GetRuleContext<Open_sequence_patternContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public PatternContext pattern() {
+			return GetRuleContext<PatternContext>(0);
+		}
+		public PatternsContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_patterns; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitPatterns(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public PatternsContext patterns() {
+		PatternsContext _localctx = new PatternsContext(Context, State);
+		EnterRule(_localctx, 110, RULE_patterns);
+		try {
+			State = 837;
+			ErrorHandler.Sync(this);
+			switch ( Interpreter.AdaptivePredict(TokenStream,105,Context) ) {
+			case 1:
+				EnterOuterAlt(_localctx, 1);
+				{
+				State = 835;
+				open_sequence_pattern();
+				}
+				break;
+			case 2:
+				EnterOuterAlt(_localctx, 2);
+				{
+				State = 836;
+				pattern();
+				}
+				break;
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class PatternContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public As_patternContext as_pattern() {
+			return GetRuleContext<As_patternContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public Or_patternContext or_pattern() {
+			return GetRuleContext<Or_patternContext>(0);
+		}
+		public PatternContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_pattern; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitPattern(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public PatternContext pattern() {
+		PatternContext _localctx = new PatternContext(Context, State);
+		EnterRule(_localctx, 112, RULE_pattern);
+		try {
+			State = 841;
+			ErrorHandler.Sync(this);
+			switch ( Interpreter.AdaptivePredict(TokenStream,106,Context) ) {
+			case 1:
+				EnterOuterAlt(_localctx, 1);
+				{
+				State = 839;
+				as_pattern();
+				}
+				break;
+			case 2:
+				EnterOuterAlt(_localctx, 2);
+				{
+				State = 840;
+				or_pattern();
+				}
+				break;
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class As_patternContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public Or_patternContext or_pattern() {
+			return GetRuleContext<Or_patternContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode AS() { return GetToken(Python3Parser.AS, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public Pattern_capture_targetContext pattern_capture_target() {
+			return GetRuleContext<Pattern_capture_targetContext>(0);
+		}
+		public As_patternContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_as_pattern; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitAs_pattern(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public As_patternContext as_pattern() {
+		As_patternContext _localctx = new As_patternContext(Context, State);
+		EnterRule(_localctx, 114, RULE_as_pattern);
+		try {
+			EnterOuterAlt(_localctx, 1);
+			{
+			State = 843;
+			or_pattern();
+			State = 844;
+			Match(AS);
+			State = 845;
+			pattern_capture_target();
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class Or_patternContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public Closed_patternContext[] closed_pattern() {
+			return GetRuleContexts<Closed_patternContext>();
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public Closed_patternContext closed_pattern(int i) {
+			return GetRuleContext<Closed_patternContext>(i);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode[] OR_OP() { return GetTokens(Python3Parser.OR_OP); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode OR_OP(int i) {
+			return GetToken(Python3Parser.OR_OP, i);
+		}
+		public Or_patternContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_or_pattern; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitOr_pattern(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public Or_patternContext or_pattern() {
+		Or_patternContext _localctx = new Or_patternContext(Context, State);
+		EnterRule(_localctx, 116, RULE_or_pattern);
+		int _la;
+		try {
+			EnterOuterAlt(_localctx, 1);
+			{
+			State = 847;
+			closed_pattern();
+			State = 852;
+			ErrorHandler.Sync(this);
+			_la = TokenStream.LA(1);
+			while (_la==OR_OP) {
+				{
+				{
+				State = 848;
+				Match(OR_OP);
+				State = 849;
+				closed_pattern();
+				}
+				}
+				State = 854;
+				ErrorHandler.Sync(this);
+				_la = TokenStream.LA(1);
+			}
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class Closed_patternContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public Literal_patternContext literal_pattern() {
+			return GetRuleContext<Literal_patternContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public Capture_patternContext capture_pattern() {
+			return GetRuleContext<Capture_patternContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public Wildcard_patternContext wildcard_pattern() {
+			return GetRuleContext<Wildcard_patternContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public Value_patternContext value_pattern() {
+			return GetRuleContext<Value_patternContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public Group_patternContext group_pattern() {
+			return GetRuleContext<Group_patternContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public Sequence_patternContext sequence_pattern() {
+			return GetRuleContext<Sequence_patternContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public Mapping_patternContext mapping_pattern() {
+			return GetRuleContext<Mapping_patternContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public Class_patternContext class_pattern() {
+			return GetRuleContext<Class_patternContext>(0);
+		}
+		public Closed_patternContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_closed_pattern; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitClosed_pattern(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public Closed_patternContext closed_pattern() {
+		Closed_patternContext _localctx = new Closed_patternContext(Context, State);
+		EnterRule(_localctx, 118, RULE_closed_pattern);
+		try {
+			State = 863;
+			ErrorHandler.Sync(this);
+			switch ( Interpreter.AdaptivePredict(TokenStream,108,Context) ) {
+			case 1:
+				EnterOuterAlt(_localctx, 1);
+				{
+				State = 855;
+				literal_pattern();
+				}
+				break;
+			case 2:
+				EnterOuterAlt(_localctx, 2);
+				{
+				State = 856;
+				capture_pattern();
+				}
+				break;
+			case 3:
+				EnterOuterAlt(_localctx, 3);
+				{
+				State = 857;
+				wildcard_pattern();
+				}
+				break;
+			case 4:
+				EnterOuterAlt(_localctx, 4);
+				{
+				State = 858;
+				value_pattern();
+				}
+				break;
+			case 5:
+				EnterOuterAlt(_localctx, 5);
+				{
+				State = 859;
+				group_pattern();
+				}
+				break;
+			case 6:
+				EnterOuterAlt(_localctx, 6);
+				{
+				State = 860;
+				sequence_pattern();
+				}
+				break;
+			case 7:
+				EnterOuterAlt(_localctx, 7);
+				{
+				State = 861;
+				mapping_pattern();
+				}
+				break;
+			case 8:
+				EnterOuterAlt(_localctx, 8);
+				{
+				State = 862;
+				class_pattern();
+				}
+				break;
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class Literal_patternContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public Signed_numberContext signed_number() {
+			return GetRuleContext<Signed_numberContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public Complex_numberContext complex_number() {
+			return GetRuleContext<Complex_numberContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public StringsContext strings() {
+			return GetRuleContext<StringsContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode NONE() { return GetToken(Python3Parser.NONE, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode TRUE() { return GetToken(Python3Parser.TRUE, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode FALSE() { return GetToken(Python3Parser.FALSE, 0); }
+		public Literal_patternContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_literal_pattern; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitLiteral_pattern(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public Literal_patternContext literal_pattern() {
+		Literal_patternContext _localctx = new Literal_patternContext(Context, State);
+		EnterRule(_localctx, 120, RULE_literal_pattern);
+		try {
+			State = 873;
+			ErrorHandler.Sync(this);
+			switch ( Interpreter.AdaptivePredict(TokenStream,109,Context) ) {
+			case 1:
+				EnterOuterAlt(_localctx, 1);
+				{
+				State = 865;
+				signed_number();
+				State = 866;
+				if (!( this.CannotBePlusMinus() )) throw new FailedPredicateException(this, " this.CannotBePlusMinus() ");
+				}
+				break;
+			case 2:
+				EnterOuterAlt(_localctx, 2);
+				{
+				State = 868;
+				complex_number();
+				}
+				break;
+			case 3:
+				EnterOuterAlt(_localctx, 3);
+				{
+				State = 869;
+				strings();
+				}
+				break;
+			case 4:
+				EnterOuterAlt(_localctx, 4);
+				{
+				State = 870;
+				Match(NONE);
+				}
+				break;
+			case 5:
+				EnterOuterAlt(_localctx, 5);
+				{
+				State = 871;
+				Match(TRUE);
+				}
+				break;
+			case 6:
+				EnterOuterAlt(_localctx, 6);
+				{
+				State = 872;
+				Match(FALSE);
+				}
+				break;
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class Literal_exprContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public Signed_numberContext signed_number() {
+			return GetRuleContext<Signed_numberContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public Complex_numberContext complex_number() {
+			return GetRuleContext<Complex_numberContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public StringsContext strings() {
+			return GetRuleContext<StringsContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode NONE() { return GetToken(Python3Parser.NONE, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode TRUE() { return GetToken(Python3Parser.TRUE, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode FALSE() { return GetToken(Python3Parser.FALSE, 0); }
+		public Literal_exprContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_literal_expr; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitLiteral_expr(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public Literal_exprContext literal_expr() {
+		Literal_exprContext _localctx = new Literal_exprContext(Context, State);
+		EnterRule(_localctx, 122, RULE_literal_expr);
+		try {
+			State = 883;
+			ErrorHandler.Sync(this);
+			switch ( Interpreter.AdaptivePredict(TokenStream,110,Context) ) {
+			case 1:
+				EnterOuterAlt(_localctx, 1);
+				{
+				State = 875;
+				signed_number();
+				State = 876;
+				if (!( this.CannotBePlusMinus() )) throw new FailedPredicateException(this, " this.CannotBePlusMinus() ");
+				}
+				break;
+			case 2:
+				EnterOuterAlt(_localctx, 2);
+				{
+				State = 878;
+				complex_number();
+				}
+				break;
+			case 3:
+				EnterOuterAlt(_localctx, 3);
+				{
+				State = 879;
+				strings();
+				}
+				break;
+			case 4:
+				EnterOuterAlt(_localctx, 4);
+				{
+				State = 880;
+				Match(NONE);
+				}
+				break;
+			case 5:
+				EnterOuterAlt(_localctx, 5);
+				{
+				State = 881;
+				Match(TRUE);
+				}
+				break;
+			case 6:
+				EnterOuterAlt(_localctx, 6);
+				{
+				State = 882;
+				Match(FALSE);
+				}
+				break;
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class Complex_numberContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public Signed_real_numberContext signed_real_number() {
+			return GetRuleContext<Signed_real_numberContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode ADD() { return GetToken(Python3Parser.ADD, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public Imaginary_numberContext imaginary_number() {
+			return GetRuleContext<Imaginary_numberContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode MINUS() { return GetToken(Python3Parser.MINUS, 0); }
+		public Complex_numberContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_complex_number; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitComplex_number(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public Complex_numberContext complex_number() {
+		Complex_numberContext _localctx = new Complex_numberContext(Context, State);
+		EnterRule(_localctx, 124, RULE_complex_number);
+		try {
+			State = 893;
+			ErrorHandler.Sync(this);
+			switch ( Interpreter.AdaptivePredict(TokenStream,111,Context) ) {
+			case 1:
+				EnterOuterAlt(_localctx, 1);
+				{
+				State = 885;
+				signed_real_number();
+				State = 886;
+				Match(ADD);
+				State = 887;
+				imaginary_number();
+				}
+				break;
+			case 2:
+				EnterOuterAlt(_localctx, 2);
+				{
+				State = 889;
+				signed_real_number();
+				State = 890;
+				Match(MINUS);
+				State = 891;
+				imaginary_number();
+				}
+				break;
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class Signed_numberContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode NUMBER() { return GetToken(Python3Parser.NUMBER, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode MINUS() { return GetToken(Python3Parser.MINUS, 0); }
+		public Signed_numberContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_signed_number; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitSigned_number(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public Signed_numberContext signed_number() {
+		Signed_numberContext _localctx = new Signed_numberContext(Context, State);
+		EnterRule(_localctx, 126, RULE_signed_number);
+		try {
+			State = 898;
+			ErrorHandler.Sync(this);
+			switch (TokenStream.LA(1)) {
+			case NUMBER:
+				EnterOuterAlt(_localctx, 1);
+				{
+				State = 895;
+				Match(NUMBER);
+				}
+				break;
+			case MINUS:
+				EnterOuterAlt(_localctx, 2);
+				{
+				State = 896;
+				Match(MINUS);
+				State = 897;
+				Match(NUMBER);
+				}
+				break;
+			default:
+				throw new NoViableAltException(this);
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class Signed_real_numberContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public Real_numberContext real_number() {
+			return GetRuleContext<Real_numberContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode MINUS() { return GetToken(Python3Parser.MINUS, 0); }
+		public Signed_real_numberContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_signed_real_number; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitSigned_real_number(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public Signed_real_numberContext signed_real_number() {
+		Signed_real_numberContext _localctx = new Signed_real_numberContext(Context, State);
+		EnterRule(_localctx, 128, RULE_signed_real_number);
+		try {
+			State = 903;
+			ErrorHandler.Sync(this);
+			switch (TokenStream.LA(1)) {
+			case NUMBER:
+				EnterOuterAlt(_localctx, 1);
+				{
+				State = 900;
+				real_number();
+				}
+				break;
+			case MINUS:
+				EnterOuterAlt(_localctx, 2);
+				{
+				State = 901;
+				Match(MINUS);
+				State = 902;
+				real_number();
+				}
+				break;
+			default:
+				throw new NoViableAltException(this);
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class Real_numberContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode NUMBER() { return GetToken(Python3Parser.NUMBER, 0); }
+		public Real_numberContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_real_number; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitReal_number(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public Real_numberContext real_number() {
+		Real_numberContext _localctx = new Real_numberContext(Context, State);
+		EnterRule(_localctx, 130, RULE_real_number);
+		try {
+			EnterOuterAlt(_localctx, 1);
+			{
+			State = 905;
+			Match(NUMBER);
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class Imaginary_numberContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode NUMBER() { return GetToken(Python3Parser.NUMBER, 0); }
+		public Imaginary_numberContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_imaginary_number; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitImaginary_number(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public Imaginary_numberContext imaginary_number() {
+		Imaginary_numberContext _localctx = new Imaginary_numberContext(Context, State);
+		EnterRule(_localctx, 132, RULE_imaginary_number);
+		try {
+			EnterOuterAlt(_localctx, 1);
+			{
+			State = 907;
+			Match(NUMBER);
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class Capture_patternContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public Pattern_capture_targetContext pattern_capture_target() {
+			return GetRuleContext<Pattern_capture_targetContext>(0);
+		}
+		public Capture_patternContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_capture_pattern; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitCapture_pattern(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public Capture_patternContext capture_pattern() {
+		Capture_patternContext _localctx = new Capture_patternContext(Context, State);
+		EnterRule(_localctx, 134, RULE_capture_pattern);
+		try {
+			EnterOuterAlt(_localctx, 1);
+			{
+			State = 909;
+			pattern_capture_target();
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class Pattern_capture_targetContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public NameContext name() {
+			return GetRuleContext<NameContext>(0);
+		}
+		public Pattern_capture_targetContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_pattern_capture_target; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitPattern_capture_target(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public Pattern_capture_targetContext pattern_capture_target() {
+		Pattern_capture_targetContext _localctx = new Pattern_capture_targetContext(Context, State);
+		EnterRule(_localctx, 136, RULE_pattern_capture_target);
+		try {
+			EnterOuterAlt(_localctx, 1);
+			{
+			State = 911;
+			name();
+			State = 912;
+			if (!( this.CannotBeDotLpEq() )) throw new FailedPredicateException(this, " this.CannotBeDotLpEq() ");
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class Wildcard_patternContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode UNDERSCORE() { return GetToken(Python3Parser.UNDERSCORE, 0); }
+		public Wildcard_patternContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_wildcard_pattern; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitWildcard_pattern(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public Wildcard_patternContext wildcard_pattern() {
+		Wildcard_patternContext _localctx = new Wildcard_patternContext(Context, State);
+		EnterRule(_localctx, 138, RULE_wildcard_pattern);
+		try {
+			EnterOuterAlt(_localctx, 1);
+			{
+			State = 914;
+			Match(UNDERSCORE);
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class Value_patternContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public AttrContext attr() {
+			return GetRuleContext<AttrContext>(0);
+		}
+		public Value_patternContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_value_pattern; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitValue_pattern(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public Value_patternContext value_pattern() {
+		Value_patternContext _localctx = new Value_patternContext(Context, State);
+		EnterRule(_localctx, 140, RULE_value_pattern);
+		try {
+			EnterOuterAlt(_localctx, 1);
+			{
+			State = 916;
+			attr();
+			State = 917;
+			if (!( this.CannotBeDotLpEq() )) throw new FailedPredicateException(this, " this.CannotBeDotLpEq() ");
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class AttrContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public NameContext[] name() {
+			return GetRuleContexts<NameContext>();
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public NameContext name(int i) {
+			return GetRuleContext<NameContext>(i);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode[] DOT() { return GetTokens(Python3Parser.DOT); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode DOT(int i) {
+			return GetToken(Python3Parser.DOT, i);
+		}
+		public AttrContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_attr; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitAttr(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public AttrContext attr() {
+		AttrContext _localctx = new AttrContext(Context, State);
+		EnterRule(_localctx, 142, RULE_attr);
+		try {
+			int _alt;
+			EnterOuterAlt(_localctx, 1);
+			{
+			State = 919;
+			name();
+			State = 922;
+			ErrorHandler.Sync(this);
+			_alt = 1;
+			do {
+				switch (_alt) {
+				case 1:
+					{
+					{
+					State = 920;
+					Match(DOT);
+					State = 921;
+					name();
+					}
+					}
+					break;
+				default:
+					throw new NoViableAltException(this);
+				}
+				State = 924;
+				ErrorHandler.Sync(this);
+				_alt = Interpreter.AdaptivePredict(TokenStream,114,Context);
+			} while ( _alt!=2 && _alt!=global::Antlr4.Runtime.Atn.ATN.INVALID_ALT_NUMBER );
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class Name_or_attrContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public AttrContext attr() {
+			return GetRuleContext<AttrContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public NameContext name() {
+			return GetRuleContext<NameContext>(0);
+		}
+		public Name_or_attrContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_name_or_attr; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitName_or_attr(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public Name_or_attrContext name_or_attr() {
+		Name_or_attrContext _localctx = new Name_or_attrContext(Context, State);
+		EnterRule(_localctx, 144, RULE_name_or_attr);
+		try {
+			State = 928;
+			ErrorHandler.Sync(this);
+			switch ( Interpreter.AdaptivePredict(TokenStream,115,Context) ) {
+			case 1:
+				EnterOuterAlt(_localctx, 1);
+				{
+				State = 926;
+				attr();
+				}
+				break;
+			case 2:
+				EnterOuterAlt(_localctx, 2);
+				{
+				State = 927;
+				name();
+				}
+				break;
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class Group_patternContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode OPEN_PAREN() { return GetToken(Python3Parser.OPEN_PAREN, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public PatternContext pattern() {
+			return GetRuleContext<PatternContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode CLOSE_PAREN() { return GetToken(Python3Parser.CLOSE_PAREN, 0); }
+		public Group_patternContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_group_pattern; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitGroup_pattern(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public Group_patternContext group_pattern() {
+		Group_patternContext _localctx = new Group_patternContext(Context, State);
+		EnterRule(_localctx, 146, RULE_group_pattern);
+		try {
+			EnterOuterAlt(_localctx, 1);
+			{
+			State = 930;
+			Match(OPEN_PAREN);
+			State = 931;
+			pattern();
+			State = 932;
+			Match(CLOSE_PAREN);
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class Sequence_patternContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode OPEN_BRACK() { return GetToken(Python3Parser.OPEN_BRACK, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode CLOSE_BRACK() { return GetToken(Python3Parser.CLOSE_BRACK, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public Maybe_sequence_patternContext maybe_sequence_pattern() {
+			return GetRuleContext<Maybe_sequence_patternContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode OPEN_PAREN() { return GetToken(Python3Parser.OPEN_PAREN, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode CLOSE_PAREN() { return GetToken(Python3Parser.CLOSE_PAREN, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public Open_sequence_patternContext open_sequence_pattern() {
+			return GetRuleContext<Open_sequence_patternContext>(0);
+		}
+		public Sequence_patternContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_sequence_pattern; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitSequence_pattern(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public Sequence_patternContext sequence_pattern() {
+		Sequence_patternContext _localctx = new Sequence_patternContext(Context, State);
+		EnterRule(_localctx, 148, RULE_sequence_pattern);
+		int _la;
+		try {
+			State = 944;
+			ErrorHandler.Sync(this);
+			switch (TokenStream.LA(1)) {
+			case OPEN_BRACK:
+				EnterOuterAlt(_localctx, 1);
+				{
+				State = 934;
+				Match(OPEN_BRACK);
+				State = 936;
+				ErrorHandler.Sync(this);
+				_la = TokenStream.LA(1);
+				if ((((_la) & ~0x3f) == 0 && ((1L << _la) & 216209344097681432L) != 0) || ((((_la - 64)) & ~0x3f) == 0 && ((1L << (_la - 64)) & 8449L) != 0)) {
+					{
+					State = 935;
+					maybe_sequence_pattern();
+					}
+				}
+
+				State = 938;
+				Match(CLOSE_BRACK);
+				}
+				break;
+			case OPEN_PAREN:
+				EnterOuterAlt(_localctx, 2);
+				{
+				State = 939;
+				Match(OPEN_PAREN);
+				State = 941;
+				ErrorHandler.Sync(this);
+				_la = TokenStream.LA(1);
+				if ((((_la) & ~0x3f) == 0 && ((1L << _la) & 216209344097681432L) != 0) || ((((_la - 64)) & ~0x3f) == 0 && ((1L << (_la - 64)) & 8449L) != 0)) {
+					{
+					State = 940;
+					open_sequence_pattern();
+					}
+				}
+
+				State = 943;
+				Match(CLOSE_PAREN);
+				}
+				break;
+			default:
+				throw new NoViableAltException(this);
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class Open_sequence_patternContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public Maybe_star_patternContext maybe_star_pattern() {
+			return GetRuleContext<Maybe_star_patternContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode COMMA() { return GetToken(Python3Parser.COMMA, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public Maybe_sequence_patternContext maybe_sequence_pattern() {
+			return GetRuleContext<Maybe_sequence_patternContext>(0);
+		}
+		public Open_sequence_patternContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_open_sequence_pattern; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitOpen_sequence_pattern(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public Open_sequence_patternContext open_sequence_pattern() {
+		Open_sequence_patternContext _localctx = new Open_sequence_patternContext(Context, State);
+		EnterRule(_localctx, 150, RULE_open_sequence_pattern);
+		int _la;
+		try {
+			EnterOuterAlt(_localctx, 1);
+			{
+			State = 946;
+			maybe_star_pattern();
+			State = 947;
+			Match(COMMA);
+			State = 949;
+			ErrorHandler.Sync(this);
+			_la = TokenStream.LA(1);
+			if ((((_la) & ~0x3f) == 0 && ((1L << _la) & 216209344097681432L) != 0) || ((((_la - 64)) & ~0x3f) == 0 && ((1L << (_la - 64)) & 8449L) != 0)) {
+				{
+				State = 948;
+				maybe_sequence_pattern();
+				}
+			}
+
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class Maybe_sequence_patternContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public Maybe_star_patternContext[] maybe_star_pattern() {
+			return GetRuleContexts<Maybe_star_patternContext>();
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public Maybe_star_patternContext maybe_star_pattern(int i) {
+			return GetRuleContext<Maybe_star_patternContext>(i);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode[] COMMA() { return GetTokens(Python3Parser.COMMA); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode COMMA(int i) {
+			return GetToken(Python3Parser.COMMA, i);
+		}
+		public Maybe_sequence_patternContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_maybe_sequence_pattern; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitMaybe_sequence_pattern(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public Maybe_sequence_patternContext maybe_sequence_pattern() {
+		Maybe_sequence_patternContext _localctx = new Maybe_sequence_patternContext(Context, State);
+		EnterRule(_localctx, 152, RULE_maybe_sequence_pattern);
+		int _la;
+		try {
+			int _alt;
+			EnterOuterAlt(_localctx, 1);
+			{
+			State = 951;
+			maybe_star_pattern();
+			State = 956;
+			ErrorHandler.Sync(this);
+			_alt = Interpreter.AdaptivePredict(TokenStream,120,Context);
+			while ( _alt!=2 && _alt!=global::Antlr4.Runtime.Atn.ATN.INVALID_ALT_NUMBER ) {
+				if ( _alt==1 ) {
+					{
+					{
+					State = 952;
+					Match(COMMA);
+					State = 953;
+					maybe_star_pattern();
+					}
+					} 
+				}
+				State = 958;
+				ErrorHandler.Sync(this);
+				_alt = Interpreter.AdaptivePredict(TokenStream,120,Context);
+			}
+			State = 960;
+			ErrorHandler.Sync(this);
+			_la = TokenStream.LA(1);
+			if (_la==COMMA) {
+				{
+				State = 959;
+				Match(COMMA);
+				}
+			}
+
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class Maybe_star_patternContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public Star_patternContext star_pattern() {
+			return GetRuleContext<Star_patternContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public PatternContext pattern() {
+			return GetRuleContext<PatternContext>(0);
+		}
+		public Maybe_star_patternContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_maybe_star_pattern; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitMaybe_star_pattern(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public Maybe_star_patternContext maybe_star_pattern() {
+		Maybe_star_patternContext _localctx = new Maybe_star_patternContext(Context, State);
+		EnterRule(_localctx, 154, RULE_maybe_star_pattern);
+		try {
+			State = 964;
+			ErrorHandler.Sync(this);
+			switch (TokenStream.LA(1)) {
+			case STAR:
+				EnterOuterAlt(_localctx, 1);
+				{
+				State = 962;
+				star_pattern();
+				}
+				break;
+			case STRING:
+			case NUMBER:
+			case FALSE:
+			case MATCH:
+			case NONE:
+			case TRUE:
+			case UNDERSCORE:
+			case NAME:
+			case OPEN_PAREN:
+			case OPEN_BRACK:
+			case MINUS:
+			case OPEN_BRACE:
+				EnterOuterAlt(_localctx, 2);
+				{
+				State = 963;
+				pattern();
+				}
+				break;
+			default:
+				throw new NoViableAltException(this);
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class Star_patternContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode STAR() { return GetToken(Python3Parser.STAR, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public Pattern_capture_targetContext pattern_capture_target() {
+			return GetRuleContext<Pattern_capture_targetContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public Wildcard_patternContext wildcard_pattern() {
+			return GetRuleContext<Wildcard_patternContext>(0);
+		}
+		public Star_patternContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_star_pattern; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitStar_pattern(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public Star_patternContext star_pattern() {
+		Star_patternContext _localctx = new Star_patternContext(Context, State);
+		EnterRule(_localctx, 156, RULE_star_pattern);
+		try {
+			State = 970;
+			ErrorHandler.Sync(this);
+			switch ( Interpreter.AdaptivePredict(TokenStream,123,Context) ) {
+			case 1:
+				EnterOuterAlt(_localctx, 1);
+				{
+				State = 966;
+				Match(STAR);
+				State = 967;
+				pattern_capture_target();
+				}
+				break;
+			case 2:
+				EnterOuterAlt(_localctx, 2);
+				{
+				State = 968;
+				Match(STAR);
+				State = 969;
+				wildcard_pattern();
+				}
+				break;
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class Mapping_patternContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode OPEN_BRACE() { return GetToken(Python3Parser.OPEN_BRACE, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode CLOSE_BRACE() { return GetToken(Python3Parser.CLOSE_BRACE, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public Double_star_patternContext double_star_pattern() {
+			return GetRuleContext<Double_star_patternContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode[] COMMA() { return GetTokens(Python3Parser.COMMA); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode COMMA(int i) {
+			return GetToken(Python3Parser.COMMA, i);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public Items_patternContext items_pattern() {
+			return GetRuleContext<Items_patternContext>(0);
+		}
+		public Mapping_patternContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_mapping_pattern; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitMapping_pattern(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public Mapping_patternContext mapping_pattern() {
+		Mapping_patternContext _localctx = new Mapping_patternContext(Context, State);
+		EnterRule(_localctx, 158, RULE_mapping_pattern);
+		int _la;
+		try {
+			State = 997;
+			ErrorHandler.Sync(this);
+			switch ( Interpreter.AdaptivePredict(TokenStream,127,Context) ) {
+			case 1:
+				EnterOuterAlt(_localctx, 1);
+				{
+				State = 972;
+				Match(OPEN_BRACE);
+				State = 973;
+				Match(CLOSE_BRACE);
+				}
+				break;
+			case 2:
+				EnterOuterAlt(_localctx, 2);
+				{
+				State = 974;
+				Match(OPEN_BRACE);
+				State = 975;
+				double_star_pattern();
+				State = 977;
+				ErrorHandler.Sync(this);
+				_la = TokenStream.LA(1);
+				if (_la==COMMA) {
+					{
+					State = 976;
+					Match(COMMA);
+					}
+				}
+
+				State = 979;
+				Match(CLOSE_BRACE);
+				}
+				break;
+			case 3:
+				EnterOuterAlt(_localctx, 3);
+				{
+				State = 981;
+				Match(OPEN_BRACE);
+				State = 982;
+				items_pattern();
+				State = 983;
+				Match(COMMA);
+				State = 984;
+				double_star_pattern();
+				State = 986;
+				ErrorHandler.Sync(this);
+				_la = TokenStream.LA(1);
+				if (_la==COMMA) {
+					{
+					State = 985;
+					Match(COMMA);
+					}
+				}
+
+				State = 988;
+				Match(CLOSE_BRACE);
+				}
+				break;
+			case 4:
+				EnterOuterAlt(_localctx, 4);
+				{
+				State = 990;
+				Match(OPEN_BRACE);
+				State = 991;
+				items_pattern();
+				State = 993;
+				ErrorHandler.Sync(this);
+				_la = TokenStream.LA(1);
+				if (_la==COMMA) {
+					{
+					State = 992;
+					Match(COMMA);
+					}
+				}
+
+				State = 995;
+				Match(CLOSE_BRACE);
+				}
+				break;
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class Items_patternContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public Key_value_patternContext[] key_value_pattern() {
+			return GetRuleContexts<Key_value_patternContext>();
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public Key_value_patternContext key_value_pattern(int i) {
+			return GetRuleContext<Key_value_patternContext>(i);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode[] COMMA() { return GetTokens(Python3Parser.COMMA); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode COMMA(int i) {
+			return GetToken(Python3Parser.COMMA, i);
+		}
+		public Items_patternContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_items_pattern; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitItems_pattern(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public Items_patternContext items_pattern() {
+		Items_patternContext _localctx = new Items_patternContext(Context, State);
+		EnterRule(_localctx, 160, RULE_items_pattern);
+		try {
+			int _alt;
+			EnterOuterAlt(_localctx, 1);
+			{
+			State = 999;
+			key_value_pattern();
+			State = 1004;
+			ErrorHandler.Sync(this);
+			_alt = Interpreter.AdaptivePredict(TokenStream,128,Context);
+			while ( _alt!=2 && _alt!=global::Antlr4.Runtime.Atn.ATN.INVALID_ALT_NUMBER ) {
+				if ( _alt==1 ) {
+					{
+					{
+					State = 1000;
+					Match(COMMA);
+					State = 1001;
+					key_value_pattern();
+					}
+					} 
+				}
+				State = 1006;
+				ErrorHandler.Sync(this);
+				_alt = Interpreter.AdaptivePredict(TokenStream,128,Context);
+			}
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class Key_value_patternContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode COLON() { return GetToken(Python3Parser.COLON, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public PatternContext pattern() {
+			return GetRuleContext<PatternContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public Literal_exprContext literal_expr() {
+			return GetRuleContext<Literal_exprContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public AttrContext attr() {
+			return GetRuleContext<AttrContext>(0);
+		}
+		public Key_value_patternContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_key_value_pattern; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitKey_value_pattern(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public Key_value_patternContext key_value_pattern() {
+		Key_value_patternContext _localctx = new Key_value_patternContext(Context, State);
+		EnterRule(_localctx, 162, RULE_key_value_pattern);
+		try {
+			EnterOuterAlt(_localctx, 1);
+			{
+			State = 1009;
+			ErrorHandler.Sync(this);
+			switch (TokenStream.LA(1)) {
+			case STRING:
+			case NUMBER:
+			case FALSE:
+			case NONE:
+			case TRUE:
+			case MINUS:
+				{
+				State = 1007;
+				literal_expr();
+				}
+				break;
+			case MATCH:
+			case UNDERSCORE:
+			case NAME:
+				{
+				State = 1008;
+				attr();
+				}
+				break;
+			default:
+				throw new NoViableAltException(this);
+			}
+			State = 1011;
+			Match(COLON);
+			State = 1012;
+			pattern();
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class Double_star_patternContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode POWER() { return GetToken(Python3Parser.POWER, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public Pattern_capture_targetContext pattern_capture_target() {
+			return GetRuleContext<Pattern_capture_targetContext>(0);
+		}
+		public Double_star_patternContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_double_star_pattern; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitDouble_star_pattern(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public Double_star_patternContext double_star_pattern() {
+		Double_star_patternContext _localctx = new Double_star_patternContext(Context, State);
+		EnterRule(_localctx, 164, RULE_double_star_pattern);
+		try {
+			EnterOuterAlt(_localctx, 1);
+			{
+			State = 1014;
+			Match(POWER);
+			State = 1015;
+			pattern_capture_target();
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class Class_patternContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public Name_or_attrContext name_or_attr() {
+			return GetRuleContext<Name_or_attrContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode OPEN_PAREN() { return GetToken(Python3Parser.OPEN_PAREN, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode CLOSE_PAREN() { return GetToken(Python3Parser.CLOSE_PAREN, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public Positional_patternsContext positional_patterns() {
+			return GetRuleContext<Positional_patternsContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode[] COMMA() { return GetTokens(Python3Parser.COMMA); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode COMMA(int i) {
+			return GetToken(Python3Parser.COMMA, i);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public Keyword_patternsContext keyword_patterns() {
+			return GetRuleContext<Keyword_patternsContext>(0);
+		}
+		public Class_patternContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_class_pattern; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitClass_pattern(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public Class_patternContext class_pattern() {
+		Class_patternContext _localctx = new Class_patternContext(Context, State);
+		EnterRule(_localctx, 166, RULE_class_pattern);
+		int _la;
+		try {
+			State = 1047;
+			ErrorHandler.Sync(this);
+			switch ( Interpreter.AdaptivePredict(TokenStream,133,Context) ) {
+			case 1:
+				EnterOuterAlt(_localctx, 1);
+				{
+				State = 1017;
+				name_or_attr();
+				State = 1018;
+				Match(OPEN_PAREN);
+				State = 1019;
+				Match(CLOSE_PAREN);
+				}
+				break;
+			case 2:
+				EnterOuterAlt(_localctx, 2);
+				{
+				State = 1021;
+				name_or_attr();
+				State = 1022;
+				Match(OPEN_PAREN);
+				State = 1023;
+				positional_patterns();
+				State = 1025;
+				ErrorHandler.Sync(this);
+				_la = TokenStream.LA(1);
+				if (_la==COMMA) {
+					{
+					State = 1024;
+					Match(COMMA);
+					}
+				}
+
+				State = 1027;
+				Match(CLOSE_PAREN);
+				}
+				break;
+			case 3:
+				EnterOuterAlt(_localctx, 3);
+				{
+				State = 1029;
+				name_or_attr();
+				State = 1030;
+				Match(OPEN_PAREN);
+				State = 1031;
+				keyword_patterns();
+				State = 1033;
+				ErrorHandler.Sync(this);
+				_la = TokenStream.LA(1);
+				if (_la==COMMA) {
+					{
+					State = 1032;
+					Match(COMMA);
+					}
+				}
+
+				State = 1035;
+				Match(CLOSE_PAREN);
+				}
+				break;
+			case 4:
+				EnterOuterAlt(_localctx, 4);
+				{
+				State = 1037;
+				name_or_attr();
+				State = 1038;
+				Match(OPEN_PAREN);
+				State = 1039;
+				positional_patterns();
+				State = 1040;
+				Match(COMMA);
+				State = 1041;
+				keyword_patterns();
+				State = 1043;
+				ErrorHandler.Sync(this);
+				_la = TokenStream.LA(1);
+				if (_la==COMMA) {
+					{
+					State = 1042;
+					Match(COMMA);
+					}
+				}
+
+				State = 1045;
+				Match(CLOSE_PAREN);
+				}
+				break;
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class Positional_patternsContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public PatternContext[] pattern() {
+			return GetRuleContexts<PatternContext>();
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public PatternContext pattern(int i) {
+			return GetRuleContext<PatternContext>(i);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode[] COMMA() { return GetTokens(Python3Parser.COMMA); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode COMMA(int i) {
+			return GetToken(Python3Parser.COMMA, i);
+		}
+		public Positional_patternsContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_positional_patterns; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitPositional_patterns(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public Positional_patternsContext positional_patterns() {
+		Positional_patternsContext _localctx = new Positional_patternsContext(Context, State);
+		EnterRule(_localctx, 168, RULE_positional_patterns);
+		try {
+			int _alt;
+			EnterOuterAlt(_localctx, 1);
+			{
+			State = 1049;
+			pattern();
+			State = 1054;
+			ErrorHandler.Sync(this);
+			_alt = Interpreter.AdaptivePredict(TokenStream,134,Context);
+			while ( _alt!=2 && _alt!=global::Antlr4.Runtime.Atn.ATN.INVALID_ALT_NUMBER ) {
+				if ( _alt==1 ) {
+					{
+					{
+					State = 1050;
+					Match(COMMA);
+					State = 1051;
+					pattern();
+					}
+					} 
+				}
+				State = 1056;
+				ErrorHandler.Sync(this);
+				_alt = Interpreter.AdaptivePredict(TokenStream,134,Context);
+			}
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class Keyword_patternsContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public Keyword_patternContext[] keyword_pattern() {
+			return GetRuleContexts<Keyword_patternContext>();
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public Keyword_patternContext keyword_pattern(int i) {
+			return GetRuleContext<Keyword_patternContext>(i);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode[] COMMA() { return GetTokens(Python3Parser.COMMA); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode COMMA(int i) {
+			return GetToken(Python3Parser.COMMA, i);
+		}
+		public Keyword_patternsContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_keyword_patterns; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitKeyword_patterns(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public Keyword_patternsContext keyword_patterns() {
+		Keyword_patternsContext _localctx = new Keyword_patternsContext(Context, State);
+		EnterRule(_localctx, 170, RULE_keyword_patterns);
+		try {
+			int _alt;
+			EnterOuterAlt(_localctx, 1);
+			{
+			State = 1057;
+			keyword_pattern();
+			State = 1062;
+			ErrorHandler.Sync(this);
+			_alt = Interpreter.AdaptivePredict(TokenStream,135,Context);
+			while ( _alt!=2 && _alt!=global::Antlr4.Runtime.Atn.ATN.INVALID_ALT_NUMBER ) {
+				if ( _alt==1 ) {
+					{
+					{
+					State = 1058;
+					Match(COMMA);
+					State = 1059;
+					keyword_pattern();
+					}
+					} 
+				}
+				State = 1064;
+				ErrorHandler.Sync(this);
+				_alt = Interpreter.AdaptivePredict(TokenStream,135,Context);
+			}
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class Keyword_patternContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public NameContext name() {
+			return GetRuleContext<NameContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode ASSIGN() { return GetToken(Python3Parser.ASSIGN, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public PatternContext pattern() {
+			return GetRuleContext<PatternContext>(0);
+		}
+		public Keyword_patternContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_keyword_pattern; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitKeyword_pattern(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public Keyword_patternContext keyword_pattern() {
+		Keyword_patternContext _localctx = new Keyword_patternContext(Context, State);
+		EnterRule(_localctx, 172, RULE_keyword_pattern);
+		try {
+			EnterOuterAlt(_localctx, 1);
+			{
+			State = 1065;
+			name();
+			State = 1066;
+			Match(ASSIGN);
+			State = 1067;
+			pattern();
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class TestContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public Or_testContext[] or_test() {
+			return GetRuleContexts<Or_testContext>();
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public Or_testContext or_test(int i) {
+			return GetRuleContext<Or_testContext>(i);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode IF() { return GetToken(Python3Parser.IF, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode ELSE() { return GetToken(Python3Parser.ELSE, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public TestContext test() {
+			return GetRuleContext<TestContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public LambdefContext lambdef() {
+			return GetRuleContext<LambdefContext>(0);
+		}
+		public TestContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_test; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitTest(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public TestContext test() {
+		TestContext _localctx = new TestContext(Context, State);
+		EnterRule(_localctx, 174, RULE_test);
+		int _la;
+		try {
+			State = 1078;
+			ErrorHandler.Sync(this);
+			switch (TokenStream.LA(1)) {
+			case STRING:
+			case NUMBER:
+			case AWAIT:
+			case FALSE:
+			case MATCH:
+			case NONE:
+			case NOT:
+			case TRUE:
+			case UNDERSCORE:
+			case NAME:
+			case ELLIPSIS:
+			case OPEN_PAREN:
+			case OPEN_BRACK:
+			case ADD:
+			case MINUS:
+			case NOT_OP:
+			case OPEN_BRACE:
+				EnterOuterAlt(_localctx, 1);
+				{
+				State = 1069;
+				or_test();
+				State = 1075;
+				ErrorHandler.Sync(this);
+				_la = TokenStream.LA(1);
+				if (_la==IF) {
+					{
+					State = 1070;
+					Match(IF);
+					State = 1071;
+					or_test();
+					State = 1072;
+					Match(ELSE);
+					State = 1073;
+					test();
+					}
+				}
+
+				}
+				break;
+			case LAMBDA:
+				EnterOuterAlt(_localctx, 2);
+				{
+				State = 1077;
+				lambdef();
+				}
+				break;
+			default:
+				throw new NoViableAltException(this);
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class Test_nocondContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public Or_testContext or_test() {
+			return GetRuleContext<Or_testContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public Lambdef_nocondContext lambdef_nocond() {
+			return GetRuleContext<Lambdef_nocondContext>(0);
+		}
+		public Test_nocondContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_test_nocond; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitTest_nocond(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public Test_nocondContext test_nocond() {
+		Test_nocondContext _localctx = new Test_nocondContext(Context, State);
+		EnterRule(_localctx, 176, RULE_test_nocond);
+		try {
+			State = 1082;
+			ErrorHandler.Sync(this);
+			switch (TokenStream.LA(1)) {
+			case STRING:
+			case NUMBER:
+			case AWAIT:
+			case FALSE:
+			case MATCH:
+			case NONE:
+			case NOT:
+			case TRUE:
+			case UNDERSCORE:
+			case NAME:
+			case ELLIPSIS:
+			case OPEN_PAREN:
+			case OPEN_BRACK:
+			case ADD:
+			case MINUS:
+			case NOT_OP:
+			case OPEN_BRACE:
+				EnterOuterAlt(_localctx, 1);
+				{
+				State = 1080;
+				or_test();
+				}
+				break;
+			case LAMBDA:
+				EnterOuterAlt(_localctx, 2);
+				{
+				State = 1081;
+				lambdef_nocond();
+				}
+				break;
+			default:
+				throw new NoViableAltException(this);
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class LambdefContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode LAMBDA() { return GetToken(Python3Parser.LAMBDA, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode COLON() { return GetToken(Python3Parser.COLON, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public TestContext test() {
+			return GetRuleContext<TestContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public VarargslistContext varargslist() {
+			return GetRuleContext<VarargslistContext>(0);
+		}
+		public LambdefContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_lambdef; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitLambdef(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public LambdefContext lambdef() {
+		LambdefContext _localctx = new LambdefContext(Context, State);
+		EnterRule(_localctx, 178, RULE_lambdef);
+		int _la;
+		try {
+			EnterOuterAlt(_localctx, 1);
+			{
+			State = 1084;
+			Match(LAMBDA);
+			State = 1086;
+			ErrorHandler.Sync(this);
+			_la = TokenStream.LA(1);
+			if ((((_la) & ~0x3f) == 0 && ((1L << _la) & 4683779897422774272L) != 0)) {
+				{
+				State = 1085;
+				varargslist();
+				}
+			}
+
+			State = 1088;
+			Match(COLON);
+			State = 1089;
+			test();
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class Lambdef_nocondContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode LAMBDA() { return GetToken(Python3Parser.LAMBDA, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode COLON() { return GetToken(Python3Parser.COLON, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public Test_nocondContext test_nocond() {
+			return GetRuleContext<Test_nocondContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public VarargslistContext varargslist() {
+			return GetRuleContext<VarargslistContext>(0);
+		}
+		public Lambdef_nocondContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_lambdef_nocond; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitLambdef_nocond(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public Lambdef_nocondContext lambdef_nocond() {
+		Lambdef_nocondContext _localctx = new Lambdef_nocondContext(Context, State);
+		EnterRule(_localctx, 180, RULE_lambdef_nocond);
+		int _la;
+		try {
+			EnterOuterAlt(_localctx, 1);
+			{
+			State = 1091;
+			Match(LAMBDA);
+			State = 1093;
+			ErrorHandler.Sync(this);
+			_la = TokenStream.LA(1);
+			if ((((_la) & ~0x3f) == 0 && ((1L << _la) & 4683779897422774272L) != 0)) {
+				{
+				State = 1092;
+				varargslist();
+				}
+			}
+
+			State = 1095;
+			Match(COLON);
+			State = 1096;
+			test_nocond();
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class Or_testContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public And_testContext[] and_test() {
+			return GetRuleContexts<And_testContext>();
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public And_testContext and_test(int i) {
+			return GetRuleContext<And_testContext>(i);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode[] OR() { return GetTokens(Python3Parser.OR); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode OR(int i) {
+			return GetToken(Python3Parser.OR, i);
+		}
+		public Or_testContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_or_test; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitOr_test(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public Or_testContext or_test() {
+		Or_testContext _localctx = new Or_testContext(Context, State);
+		EnterRule(_localctx, 182, RULE_or_test);
+		int _la;
+		try {
+			EnterOuterAlt(_localctx, 1);
+			{
+			State = 1098;
+			and_test();
+			State = 1103;
+			ErrorHandler.Sync(this);
+			_la = TokenStream.LA(1);
+			while (_la==OR) {
+				{
+				{
+				State = 1099;
+				Match(OR);
+				State = 1100;
+				and_test();
+				}
+				}
+				State = 1105;
+				ErrorHandler.Sync(this);
+				_la = TokenStream.LA(1);
+			}
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class And_testContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public Not_testContext[] not_test() {
+			return GetRuleContexts<Not_testContext>();
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public Not_testContext not_test(int i) {
+			return GetRuleContext<Not_testContext>(i);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode[] AND() { return GetTokens(Python3Parser.AND); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode AND(int i) {
+			return GetToken(Python3Parser.AND, i);
+		}
+		public And_testContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_and_test; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitAnd_test(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public And_testContext and_test() {
+		And_testContext _localctx = new And_testContext(Context, State);
+		EnterRule(_localctx, 184, RULE_and_test);
+		int _la;
+		try {
+			EnterOuterAlt(_localctx, 1);
+			{
+			State = 1106;
+			not_test();
+			State = 1111;
+			ErrorHandler.Sync(this);
+			_la = TokenStream.LA(1);
+			while (_la==AND) {
+				{
+				{
+				State = 1107;
+				Match(AND);
+				State = 1108;
+				not_test();
+				}
+				}
+				State = 1113;
+				ErrorHandler.Sync(this);
+				_la = TokenStream.LA(1);
+			}
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class Not_testContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode NOT() { return GetToken(Python3Parser.NOT, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public Not_testContext not_test() {
+			return GetRuleContext<Not_testContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public ComparisonContext comparison() {
+			return GetRuleContext<ComparisonContext>(0);
+		}
+		public Not_testContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_not_test; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitNot_test(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public Not_testContext not_test() {
+		Not_testContext _localctx = new Not_testContext(Context, State);
+		EnterRule(_localctx, 186, RULE_not_test);
+		try {
+			State = 1117;
+			ErrorHandler.Sync(this);
+			switch (TokenStream.LA(1)) {
+			case NOT:
+				EnterOuterAlt(_localctx, 1);
+				{
+				State = 1114;
+				Match(NOT);
+				State = 1115;
+				not_test();
+				}
+				break;
+			case STRING:
+			case NUMBER:
+			case AWAIT:
+			case FALSE:
+			case MATCH:
+			case NONE:
+			case TRUE:
+			case UNDERSCORE:
+			case NAME:
+			case ELLIPSIS:
+			case OPEN_PAREN:
+			case OPEN_BRACK:
+			case ADD:
+			case MINUS:
+			case NOT_OP:
+			case OPEN_BRACE:
+				EnterOuterAlt(_localctx, 2);
+				{
+				State = 1116;
+				comparison();
+				}
+				break;
+			default:
+				throw new NoViableAltException(this);
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class ComparisonContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public ExprContext[] expr() {
+			return GetRuleContexts<ExprContext>();
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public ExprContext expr(int i) {
+			return GetRuleContext<ExprContext>(i);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public Comp_opContext[] comp_op() {
+			return GetRuleContexts<Comp_opContext>();
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public Comp_opContext comp_op(int i) {
+			return GetRuleContext<Comp_opContext>(i);
+		}
+		public ComparisonContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_comparison; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitComparison(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public ComparisonContext comparison() {
+		ComparisonContext _localctx = new ComparisonContext(Context, State);
+		EnterRule(_localctx, 188, RULE_comparison);
+		try {
+			int _alt;
+			EnterOuterAlt(_localctx, 1);
+			{
+			State = 1119;
+			expr(0);
+			State = 1125;
+			ErrorHandler.Sync(this);
+			_alt = Interpreter.AdaptivePredict(TokenStream,144,Context);
+			while ( _alt!=2 && _alt!=global::Antlr4.Runtime.Atn.ATN.INVALID_ALT_NUMBER ) {
+				if ( _alt==1 ) {
+					{
+					{
+					State = 1120;
+					comp_op();
+					State = 1121;
+					expr(0);
+					}
+					} 
+				}
+				State = 1127;
+				ErrorHandler.Sync(this);
+				_alt = Interpreter.AdaptivePredict(TokenStream,144,Context);
+			}
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class Comp_opContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode LESS_THAN() { return GetToken(Python3Parser.LESS_THAN, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode GREATER_THAN() { return GetToken(Python3Parser.GREATER_THAN, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode EQUALS() { return GetToken(Python3Parser.EQUALS, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode GT_EQ() { return GetToken(Python3Parser.GT_EQ, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode LT_EQ() { return GetToken(Python3Parser.LT_EQ, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode NOT_EQ_1() { return GetToken(Python3Parser.NOT_EQ_1, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode NOT_EQ_2() { return GetToken(Python3Parser.NOT_EQ_2, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode IN() { return GetToken(Python3Parser.IN, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode NOT() { return GetToken(Python3Parser.NOT, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode IS() { return GetToken(Python3Parser.IS, 0); }
+		public Comp_opContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_comp_op; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitComp_op(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public Comp_opContext comp_op() {
+		Comp_opContext _localctx = new Comp_opContext(Context, State);
+		EnterRule(_localctx, 190, RULE_comp_op);
+		try {
+			State = 1141;
+			ErrorHandler.Sync(this);
+			switch ( Interpreter.AdaptivePredict(TokenStream,145,Context) ) {
+			case 1:
+				EnterOuterAlt(_localctx, 1);
+				{
+				State = 1128;
+				Match(LESS_THAN);
+				}
+				break;
+			case 2:
+				EnterOuterAlt(_localctx, 2);
+				{
+				State = 1129;
+				Match(GREATER_THAN);
+				}
+				break;
+			case 3:
+				EnterOuterAlt(_localctx, 3);
+				{
+				State = 1130;
+				Match(EQUALS);
+				}
+				break;
+			case 4:
+				EnterOuterAlt(_localctx, 4);
+				{
+				State = 1131;
+				Match(GT_EQ);
+				}
+				break;
+			case 5:
+				EnterOuterAlt(_localctx, 5);
+				{
+				State = 1132;
+				Match(LT_EQ);
+				}
+				break;
+			case 6:
+				EnterOuterAlt(_localctx, 6);
+				{
+				State = 1133;
+				Match(NOT_EQ_1);
+				}
+				break;
+			case 7:
+				EnterOuterAlt(_localctx, 7);
+				{
+				State = 1134;
+				Match(NOT_EQ_2);
+				}
+				break;
+			case 8:
+				EnterOuterAlt(_localctx, 8);
+				{
+				State = 1135;
+				Match(IN);
+				}
+				break;
+			case 9:
+				EnterOuterAlt(_localctx, 9);
+				{
+				State = 1136;
+				Match(NOT);
+				State = 1137;
+				Match(IN);
+				}
+				break;
+			case 10:
+				EnterOuterAlt(_localctx, 10);
+				{
+				State = 1138;
+				Match(IS);
+				}
+				break;
+			case 11:
+				EnterOuterAlt(_localctx, 11);
+				{
+				State = 1139;
+				Match(IS);
+				State = 1140;
+				Match(NOT);
+				}
+				break;
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class Star_exprContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode STAR() { return GetToken(Python3Parser.STAR, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public ExprContext expr() {
+			return GetRuleContext<ExprContext>(0);
+		}
+		public Star_exprContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_star_expr; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitStar_expr(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public Star_exprContext star_expr() {
+		Star_exprContext _localctx = new Star_exprContext(Context, State);
+		EnterRule(_localctx, 192, RULE_star_expr);
+		try {
+			EnterOuterAlt(_localctx, 1);
+			{
+			State = 1143;
+			Match(STAR);
+			State = 1144;
+			expr(0);
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class ExprContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public Atom_exprContext atom_expr() {
+			return GetRuleContext<Atom_exprContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public ExprContext[] expr() {
+			return GetRuleContexts<ExprContext>();
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public ExprContext expr(int i) {
+			return GetRuleContext<ExprContext>(i);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode[] ADD() { return GetTokens(Python3Parser.ADD); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode ADD(int i) {
+			return GetToken(Python3Parser.ADD, i);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode[] MINUS() { return GetTokens(Python3Parser.MINUS); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode MINUS(int i) {
+			return GetToken(Python3Parser.MINUS, i);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode[] NOT_OP() { return GetTokens(Python3Parser.NOT_OP); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode NOT_OP(int i) {
+			return GetToken(Python3Parser.NOT_OP, i);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode POWER() { return GetToken(Python3Parser.POWER, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode STAR() { return GetToken(Python3Parser.STAR, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode AT() { return GetToken(Python3Parser.AT, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode DIV() { return GetToken(Python3Parser.DIV, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode MOD() { return GetToken(Python3Parser.MOD, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode IDIV() { return GetToken(Python3Parser.IDIV, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode LEFT_SHIFT() { return GetToken(Python3Parser.LEFT_SHIFT, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode RIGHT_SHIFT() { return GetToken(Python3Parser.RIGHT_SHIFT, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode AND_OP() { return GetToken(Python3Parser.AND_OP, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode XOR() { return GetToken(Python3Parser.XOR, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode OR_OP() { return GetToken(Python3Parser.OR_OP, 0); }
+		public ExprContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_expr; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitExpr(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public ExprContext expr() {
+		return expr(0);
+	}
+
+	private ExprContext expr(int _p) {
+		ParserRuleContext _parentctx = Context;
+		int _parentState = State;
+		ExprContext _localctx = new ExprContext(Context, _parentState);
+		ExprContext _prevctx = _localctx;
+		int _startState = 194;
+		EnterRecursionRule(_localctx, 194, RULE_expr, _p);
+		int _la;
+		try {
+			int _alt;
+			EnterOuterAlt(_localctx, 1);
+			{
+			State = 1154;
+			ErrorHandler.Sync(this);
+			switch (TokenStream.LA(1)) {
+			case STRING:
+			case NUMBER:
+			case AWAIT:
+			case FALSE:
+			case MATCH:
+			case NONE:
+			case TRUE:
+			case UNDERSCORE:
+			case NAME:
+			case ELLIPSIS:
+			case OPEN_PAREN:
+			case OPEN_BRACK:
+			case OPEN_BRACE:
+				{
+				State = 1147;
+				atom_expr();
+				}
+				break;
+			case ADD:
+			case MINUS:
+			case NOT_OP:
+				{
+				State = 1149;
+				ErrorHandler.Sync(this);
+				_alt = 1;
+				do {
+					switch (_alt) {
+					case 1:
+						{
+						{
+						State = 1148;
+						_la = TokenStream.LA(1);
+						if ( !(((((_la - 71)) & ~0x3f) == 0 && ((1L << (_la - 71)) & 35L) != 0)) ) {
+						ErrorHandler.RecoverInline(this);
+						}
+						else {
+							ErrorHandler.ReportMatch(this);
+						    Consume();
+						}
+						}
+						}
+						break;
+					default:
+						throw new NoViableAltException(this);
+					}
+					State = 1151;
+					ErrorHandler.Sync(this);
+					_alt = Interpreter.AdaptivePredict(TokenStream,146,Context);
+				} while ( _alt!=2 && _alt!=global::Antlr4.Runtime.Atn.ATN.INVALID_ALT_NUMBER );
+				State = 1153;
+				expr(7);
+				}
+				break;
+			default:
+				throw new NoViableAltException(this);
+			}
+			Context.Stop = TokenStream.LT(-1);
+			State = 1179;
+			ErrorHandler.Sync(this);
+			_alt = Interpreter.AdaptivePredict(TokenStream,149,Context);
+			while ( _alt!=2 && _alt!=global::Antlr4.Runtime.Atn.ATN.INVALID_ALT_NUMBER ) {
+				if ( _alt==1 ) {
+					if ( ParseListeners!=null )
+						TriggerExitRuleEvent();
+					_prevctx = _localctx;
+					{
+					State = 1177;
+					ErrorHandler.Sync(this);
+					switch ( Interpreter.AdaptivePredict(TokenStream,148,Context) ) {
+					case 1:
+						{
+						_localctx = new ExprContext(_parentctx, _parentState);
+						PushNewRecursionContext(_localctx, _startState, RULE_expr);
+						State = 1156;
+						if (!(Precpred(Context, 8))) throw new FailedPredicateException(this, "Precpred(Context, 8)");
+						State = 1157;
+						Match(POWER);
+						State = 1158;
+						expr(9);
+						}
+						break;
+					case 2:
+						{
+						_localctx = new ExprContext(_parentctx, _parentState);
+						PushNewRecursionContext(_localctx, _startState, RULE_expr);
+						State = 1159;
+						if (!(Precpred(Context, 6))) throw new FailedPredicateException(this, "Precpred(Context, 6)");
+						State = 1160;
+						_la = TokenStream.LA(1);
+						if ( !(((((_la - 56)) & ~0x3f) == 0 && ((1L << (_la - 56)) & 1074659329L) != 0)) ) {
+						ErrorHandler.RecoverInline(this);
+						}
+						else {
+							ErrorHandler.ReportMatch(this);
+						    Consume();
+						}
+						State = 1161;
+						expr(7);
+						}
+						break;
+					case 3:
+						{
+						_localctx = new ExprContext(_parentctx, _parentState);
+						PushNewRecursionContext(_localctx, _startState, RULE_expr);
+						State = 1162;
+						if (!(Precpred(Context, 5))) throw new FailedPredicateException(this, "Precpred(Context, 5)");
+						State = 1163;
+						_la = TokenStream.LA(1);
+						if ( !(_la==ADD || _la==MINUS) ) {
+						ErrorHandler.RecoverInline(this);
+						}
+						else {
+							ErrorHandler.ReportMatch(this);
+						    Consume();
+						}
+						State = 1164;
+						expr(6);
+						}
+						break;
+					case 4:
+						{
+						_localctx = new ExprContext(_parentctx, _parentState);
+						PushNewRecursionContext(_localctx, _startState, RULE_expr);
+						State = 1165;
+						if (!(Precpred(Context, 4))) throw new FailedPredicateException(this, "Precpred(Context, 4)");
+						State = 1166;
+						_la = TokenStream.LA(1);
+						if ( !(_la==LEFT_SHIFT || _la==RIGHT_SHIFT) ) {
+						ErrorHandler.RecoverInline(this);
+						}
+						else {
+							ErrorHandler.ReportMatch(this);
+						    Consume();
+						}
+						State = 1167;
+						expr(5);
+						}
+						break;
+					case 5:
+						{
+						_localctx = new ExprContext(_parentctx, _parentState);
+						PushNewRecursionContext(_localctx, _startState, RULE_expr);
+						State = 1168;
+						if (!(Precpred(Context, 3))) throw new FailedPredicateException(this, "Precpred(Context, 3)");
+						State = 1169;
+						Match(AND_OP);
+						State = 1170;
+						expr(4);
+						}
+						break;
+					case 6:
+						{
+						_localctx = new ExprContext(_parentctx, _parentState);
+						PushNewRecursionContext(_localctx, _startState, RULE_expr);
+						State = 1171;
+						if (!(Precpred(Context, 2))) throw new FailedPredicateException(this, "Precpred(Context, 2)");
+						State = 1172;
+						Match(XOR);
+						State = 1173;
+						expr(3);
+						}
+						break;
+					case 7:
+						{
+						_localctx = new ExprContext(_parentctx, _parentState);
+						PushNewRecursionContext(_localctx, _startState, RULE_expr);
+						State = 1174;
+						if (!(Precpred(Context, 1))) throw new FailedPredicateException(this, "Precpred(Context, 1)");
+						State = 1175;
+						Match(OR_OP);
+						State = 1176;
+						expr(2);
+						}
+						break;
+					}
+					} 
+				}
+				State = 1181;
+				ErrorHandler.Sync(this);
+				_alt = Interpreter.AdaptivePredict(TokenStream,149,Context);
+			}
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			UnrollRecursionContexts(_parentctx);
+		}
+		return _localctx;
+	}
+
+	public partial class Atom_exprContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public AtomContext atom() {
+			return GetRuleContext<AtomContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode AWAIT() { return GetToken(Python3Parser.AWAIT, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public TrailerContext[] trailer() {
+			return GetRuleContexts<TrailerContext>();
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public TrailerContext trailer(int i) {
+			return GetRuleContext<TrailerContext>(i);
+		}
+		public Atom_exprContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_atom_expr; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitAtom_expr(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public Atom_exprContext atom_expr() {
+		Atom_exprContext _localctx = new Atom_exprContext(Context, State);
+		EnterRule(_localctx, 196, RULE_atom_expr);
+		int _la;
+		try {
+			int _alt;
+			EnterOuterAlt(_localctx, 1);
+			{
+			State = 1183;
+			ErrorHandler.Sync(this);
+			_la = TokenStream.LA(1);
+			if (_la==AWAIT) {
+				{
+				State = 1182;
+				Match(AWAIT);
+				}
+			}
+
+			State = 1185;
+			atom();
+			State = 1189;
+			ErrorHandler.Sync(this);
+			_alt = Interpreter.AdaptivePredict(TokenStream,151,Context);
+			while ( _alt!=2 && _alt!=global::Antlr4.Runtime.Atn.ATN.INVALID_ALT_NUMBER ) {
+				if ( _alt==1 ) {
+					{
+					{
+					State = 1186;
+					trailer();
+					}
+					} 
+				}
+				State = 1191;
+				ErrorHandler.Sync(this);
+				_alt = Interpreter.AdaptivePredict(TokenStream,151,Context);
+			}
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class AtomContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode OPEN_PAREN() { return GetToken(Python3Parser.OPEN_PAREN, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode CLOSE_PAREN() { return GetToken(Python3Parser.CLOSE_PAREN, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public Yield_exprContext yield_expr() {
+			return GetRuleContext<Yield_exprContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public Testlist_compContext testlist_comp() {
+			return GetRuleContext<Testlist_compContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode OPEN_BRACK() { return GetToken(Python3Parser.OPEN_BRACK, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode CLOSE_BRACK() { return GetToken(Python3Parser.CLOSE_BRACK, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode OPEN_BRACE() { return GetToken(Python3Parser.OPEN_BRACE, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode CLOSE_BRACE() { return GetToken(Python3Parser.CLOSE_BRACE, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public DictorsetmakerContext dictorsetmaker() {
+			return GetRuleContext<DictorsetmakerContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public NameContext name() {
+			return GetRuleContext<NameContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode NUMBER() { return GetToken(Python3Parser.NUMBER, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode[] STRING() { return GetTokens(Python3Parser.STRING); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode STRING(int i) {
+			return GetToken(Python3Parser.STRING, i);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode ELLIPSIS() { return GetToken(Python3Parser.ELLIPSIS, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode NONE() { return GetToken(Python3Parser.NONE, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode TRUE() { return GetToken(Python3Parser.TRUE, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode FALSE() { return GetToken(Python3Parser.FALSE, 0); }
+		public AtomContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_atom; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitAtom(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public AtomContext atom() {
+		AtomContext _localctx = new AtomContext(Context, State);
+		EnterRule(_localctx, 198, RULE_atom);
+		int _la;
+		try {
+			int _alt;
+			State = 1219;
+			ErrorHandler.Sync(this);
+			switch (TokenStream.LA(1)) {
+			case OPEN_PAREN:
+				EnterOuterAlt(_localctx, 1);
+				{
+				State = 1192;
+				Match(OPEN_PAREN);
+				State = 1195;
+				ErrorHandler.Sync(this);
+				switch (TokenStream.LA(1)) {
+				case YIELD:
+					{
+					State = 1193;
+					yield_expr();
+					}
+					break;
+				case STRING:
+				case NUMBER:
+				case AWAIT:
+				case FALSE:
+				case LAMBDA:
+				case MATCH:
+				case NONE:
+				case NOT:
+				case TRUE:
+				case UNDERSCORE:
+				case NAME:
+				case ELLIPSIS:
+				case STAR:
+				case OPEN_PAREN:
+				case OPEN_BRACK:
+				case ADD:
+				case MINUS:
+				case NOT_OP:
+				case OPEN_BRACE:
+					{
+					State = 1194;
+					testlist_comp();
+					}
+					break;
+				case CLOSE_PAREN:
+					break;
+				default:
+					break;
+				}
+				State = 1197;
+				Match(CLOSE_PAREN);
+				}
+				break;
+			case OPEN_BRACK:
+				EnterOuterAlt(_localctx, 2);
+				{
+				State = 1198;
+				Match(OPEN_BRACK);
+				State = 1200;
+				ErrorHandler.Sync(this);
+				_la = TokenStream.LA(1);
+				if ((((_la) & ~0x3f) == 0 && ((1L << _la) & 252238150243451928L) != 0) || ((((_la - 64)) & ~0x3f) == 0 && ((1L << (_la - 64)) & 12673L) != 0)) {
+					{
+					State = 1199;
+					testlist_comp();
+					}
+				}
+
+				State = 1202;
+				Match(CLOSE_BRACK);
+				}
+				break;
+			case OPEN_BRACE:
+				EnterOuterAlt(_localctx, 3);
+				{
+				State = 1203;
+				Match(OPEN_BRACE);
+				State = 1205;
+				ErrorHandler.Sync(this);
+				_la = TokenStream.LA(1);
+				if ((((_la) & ~0x3f) == 0 && ((1L << _la) & 4863924168670839832L) != 0) || ((((_la - 64)) & ~0x3f) == 0 && ((1L << (_la - 64)) & 12673L) != 0)) {
+					{
+					State = 1204;
+					dictorsetmaker();
+					}
+				}
+
+				State = 1207;
+				Match(CLOSE_BRACE);
+				}
+				break;
+			case MATCH:
+			case UNDERSCORE:
+			case NAME:
+				EnterOuterAlt(_localctx, 4);
+				{
+				State = 1208;
+				name();
+				}
+				break;
+			case NUMBER:
+				EnterOuterAlt(_localctx, 5);
+				{
+				State = 1209;
+				Match(NUMBER);
+				}
+				break;
+			case STRING:
+				EnterOuterAlt(_localctx, 6);
+				{
+				State = 1211;
+				ErrorHandler.Sync(this);
+				_alt = 1;
+				do {
+					switch (_alt) {
+					case 1:
+						{
+						{
+						State = 1210;
+						Match(STRING);
+						}
+						}
+						break;
+					default:
+						throw new NoViableAltException(this);
+					}
+					State = 1213;
+					ErrorHandler.Sync(this);
+					_alt = Interpreter.AdaptivePredict(TokenStream,155,Context);
+				} while ( _alt!=2 && _alt!=global::Antlr4.Runtime.Atn.ATN.INVALID_ALT_NUMBER );
+				}
+				break;
+			case ELLIPSIS:
+				EnterOuterAlt(_localctx, 7);
+				{
+				State = 1215;
+				Match(ELLIPSIS);
+				}
+				break;
+			case NONE:
+				EnterOuterAlt(_localctx, 8);
+				{
+				State = 1216;
+				Match(NONE);
+				}
+				break;
+			case TRUE:
+				EnterOuterAlt(_localctx, 9);
+				{
+				State = 1217;
+				Match(TRUE);
+				}
+				break;
+			case FALSE:
+				EnterOuterAlt(_localctx, 10);
+				{
+				State = 1218;
+				Match(FALSE);
+				}
+				break;
+			default:
+				throw new NoViableAltException(this);
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class NameContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode NAME() { return GetToken(Python3Parser.NAME, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode UNDERSCORE() { return GetToken(Python3Parser.UNDERSCORE, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode MATCH() { return GetToken(Python3Parser.MATCH, 0); }
+		public NameContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_name; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitName(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public NameContext name() {
+		NameContext _localctx = new NameContext(Context, State);
+		EnterRule(_localctx, 200, RULE_name);
+		int _la;
+		try {
+			EnterOuterAlt(_localctx, 1);
+			{
+			State = 1221;
+			_la = TokenStream.LA(1);
+			if ( !((((_la) & ~0x3f) == 0 && ((1L << _la) & 36284957458432L) != 0)) ) {
+			ErrorHandler.RecoverInline(this);
+			}
+			else {
+				ErrorHandler.ReportMatch(this);
+			    Consume();
+			}
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class Testlist_compContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public TestContext[] test() {
+			return GetRuleContexts<TestContext>();
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public TestContext test(int i) {
+			return GetRuleContext<TestContext>(i);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public Star_exprContext[] star_expr() {
+			return GetRuleContexts<Star_exprContext>();
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public Star_exprContext star_expr(int i) {
+			return GetRuleContext<Star_exprContext>(i);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public Comp_forContext comp_for() {
+			return GetRuleContext<Comp_forContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode[] COMMA() { return GetTokens(Python3Parser.COMMA); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode COMMA(int i) {
+			return GetToken(Python3Parser.COMMA, i);
+		}
+		public Testlist_compContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_testlist_comp; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitTestlist_comp(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public Testlist_compContext testlist_comp() {
+		Testlist_compContext _localctx = new Testlist_compContext(Context, State);
+		EnterRule(_localctx, 202, RULE_testlist_comp);
+		int _la;
+		try {
+			int _alt;
+			EnterOuterAlt(_localctx, 1);
+			{
+			State = 1225;
+			ErrorHandler.Sync(this);
+			switch (TokenStream.LA(1)) {
+			case STRING:
+			case NUMBER:
+			case AWAIT:
+			case FALSE:
+			case LAMBDA:
+			case MATCH:
+			case NONE:
+			case NOT:
+			case TRUE:
+			case UNDERSCORE:
+			case NAME:
+			case ELLIPSIS:
+			case OPEN_PAREN:
+			case OPEN_BRACK:
+			case ADD:
+			case MINUS:
+			case NOT_OP:
+			case OPEN_BRACE:
+				{
+				State = 1223;
+				test();
+				}
+				break;
+			case STAR:
+				{
+				State = 1224;
+				star_expr();
+				}
+				break;
+			default:
+				throw new NoViableAltException(this);
+			}
+			State = 1241;
+			ErrorHandler.Sync(this);
+			switch (TokenStream.LA(1)) {
+			case ASYNC:
+			case FOR:
+				{
+				State = 1227;
+				comp_for();
+				}
+				break;
+			case CLOSE_PAREN:
+			case COMMA:
+			case CLOSE_BRACK:
+				{
+				State = 1235;
+				ErrorHandler.Sync(this);
+				_alt = Interpreter.AdaptivePredict(TokenStream,159,Context);
+				while ( _alt!=2 && _alt!=global::Antlr4.Runtime.Atn.ATN.INVALID_ALT_NUMBER ) {
+					if ( _alt==1 ) {
+						{
+						{
+						State = 1228;
+						Match(COMMA);
+						State = 1231;
+						ErrorHandler.Sync(this);
+						switch (TokenStream.LA(1)) {
+						case STRING:
+						case NUMBER:
+						case AWAIT:
+						case FALSE:
+						case LAMBDA:
+						case MATCH:
+						case NONE:
+						case NOT:
+						case TRUE:
+						case UNDERSCORE:
+						case NAME:
+						case ELLIPSIS:
+						case OPEN_PAREN:
+						case OPEN_BRACK:
+						case ADD:
+						case MINUS:
+						case NOT_OP:
+						case OPEN_BRACE:
+							{
+							State = 1229;
+							test();
+							}
+							break;
+						case STAR:
+							{
+							State = 1230;
+							star_expr();
+							}
+							break;
+						default:
+							throw new NoViableAltException(this);
+						}
+						}
+						} 
+					}
+					State = 1237;
+					ErrorHandler.Sync(this);
+					_alt = Interpreter.AdaptivePredict(TokenStream,159,Context);
+				}
+				State = 1239;
+				ErrorHandler.Sync(this);
+				_la = TokenStream.LA(1);
+				if (_la==COMMA) {
+					{
+					State = 1238;
+					Match(COMMA);
+					}
+				}
+
+				}
+				break;
+			default:
+				throw new NoViableAltException(this);
+			}
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class TrailerContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode OPEN_PAREN() { return GetToken(Python3Parser.OPEN_PAREN, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode CLOSE_PAREN() { return GetToken(Python3Parser.CLOSE_PAREN, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public ArglistContext arglist() {
+			return GetRuleContext<ArglistContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode OPEN_BRACK() { return GetToken(Python3Parser.OPEN_BRACK, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public SubscriptlistContext subscriptlist() {
+			return GetRuleContext<SubscriptlistContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode CLOSE_BRACK() { return GetToken(Python3Parser.CLOSE_BRACK, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode DOT() { return GetToken(Python3Parser.DOT, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public NameContext name() {
+			return GetRuleContext<NameContext>(0);
+		}
+		public TrailerContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_trailer; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitTrailer(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public TrailerContext trailer() {
+		TrailerContext _localctx = new TrailerContext(Context, State);
+		EnterRule(_localctx, 204, RULE_trailer);
+		int _la;
+		try {
+			State = 1254;
+			ErrorHandler.Sync(this);
+			switch (TokenStream.LA(1)) {
+			case OPEN_PAREN:
+				EnterOuterAlt(_localctx, 1);
+				{
+				State = 1243;
+				Match(OPEN_PAREN);
+				State = 1245;
+				ErrorHandler.Sync(this);
+				_la = TokenStream.LA(1);
+				if ((((_la) & ~0x3f) == 0 && ((1L << _la) & 4863924168670839832L) != 0) || ((((_la - 64)) & ~0x3f) == 0 && ((1L << (_la - 64)) & 12673L) != 0)) {
+					{
+					State = 1244;
+					arglist();
+					}
+				}
+
+				State = 1247;
+				Match(CLOSE_PAREN);
+				}
+				break;
+			case OPEN_BRACK:
+				EnterOuterAlt(_localctx, 2);
+				{
+				State = 1248;
+				Match(OPEN_BRACK);
+				State = 1249;
+				subscriptlist();
+				State = 1250;
+				Match(CLOSE_BRACK);
+				}
+				break;
+			case DOT:
+				EnterOuterAlt(_localctx, 3);
+				{
+				State = 1252;
+				Match(DOT);
+				State = 1253;
+				name();
+				}
+				break;
+			default:
+				throw new NoViableAltException(this);
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class SubscriptlistContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public Subscript_Context[] subscript_() {
+			return GetRuleContexts<Subscript_Context>();
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public Subscript_Context subscript_(int i) {
+			return GetRuleContext<Subscript_Context>(i);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode[] COMMA() { return GetTokens(Python3Parser.COMMA); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode COMMA(int i) {
+			return GetToken(Python3Parser.COMMA, i);
+		}
+		public SubscriptlistContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_subscriptlist; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitSubscriptlist(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public SubscriptlistContext subscriptlist() {
+		SubscriptlistContext _localctx = new SubscriptlistContext(Context, State);
+		EnterRule(_localctx, 206, RULE_subscriptlist);
+		int _la;
+		try {
+			int _alt;
+			EnterOuterAlt(_localctx, 1);
+			{
+			State = 1256;
+			subscript_();
+			State = 1261;
+			ErrorHandler.Sync(this);
+			_alt = Interpreter.AdaptivePredict(TokenStream,164,Context);
+			while ( _alt!=2 && _alt!=global::Antlr4.Runtime.Atn.ATN.INVALID_ALT_NUMBER ) {
+				if ( _alt==1 ) {
+					{
+					{
+					State = 1257;
+					Match(COMMA);
+					State = 1258;
+					subscript_();
+					}
+					} 
+				}
+				State = 1263;
+				ErrorHandler.Sync(this);
+				_alt = Interpreter.AdaptivePredict(TokenStream,164,Context);
+			}
+			State = 1265;
+			ErrorHandler.Sync(this);
+			_la = TokenStream.LA(1);
+			if (_la==COMMA) {
+				{
+				State = 1264;
+				Match(COMMA);
+				}
+			}
+
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class Subscript_Context : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public TestContext[] test() {
+			return GetRuleContexts<TestContext>();
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public TestContext test(int i) {
+			return GetRuleContext<TestContext>(i);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode COLON() { return GetToken(Python3Parser.COLON, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public SliceopContext sliceop() {
+			return GetRuleContext<SliceopContext>(0);
+		}
+		public Subscript_Context(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_subscript_; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitSubscript_(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public Subscript_Context subscript_() {
+		Subscript_Context _localctx = new Subscript_Context(Context, State);
+		EnterRule(_localctx, 208, RULE_subscript_);
+		int _la;
+		try {
+			State = 1278;
+			ErrorHandler.Sync(this);
+			switch ( Interpreter.AdaptivePredict(TokenStream,169,Context) ) {
+			case 1:
+				EnterOuterAlt(_localctx, 1);
+				{
+				State = 1267;
+				test();
+				}
+				break;
+			case 2:
+				EnterOuterAlt(_localctx, 2);
+				{
+				State = 1269;
+				ErrorHandler.Sync(this);
+				_la = TokenStream.LA(1);
+				if ((((_la) & ~0x3f) == 0 && ((1L << _la) & 180180556205523992L) != 0) || ((((_la - 64)) & ~0x3f) == 0 && ((1L << (_la - 64)) & 12673L) != 0)) {
+					{
+					State = 1268;
+					test();
+					}
+				}
+
+				State = 1271;
+				Match(COLON);
+				State = 1273;
+				ErrorHandler.Sync(this);
+				_la = TokenStream.LA(1);
+				if ((((_la) & ~0x3f) == 0 && ((1L << _la) & 180180556205523992L) != 0) || ((((_la - 64)) & ~0x3f) == 0 && ((1L << (_la - 64)) & 12673L) != 0)) {
+					{
+					State = 1272;
+					test();
+					}
+				}
+
+				State = 1276;
+				ErrorHandler.Sync(this);
+				_la = TokenStream.LA(1);
+				if (_la==COLON) {
+					{
+					State = 1275;
+					sliceop();
+					}
+				}
+
+				}
+				break;
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class SliceopContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode COLON() { return GetToken(Python3Parser.COLON, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public TestContext test() {
+			return GetRuleContext<TestContext>(0);
+		}
+		public SliceopContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_sliceop; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitSliceop(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public SliceopContext sliceop() {
+		SliceopContext _localctx = new SliceopContext(Context, State);
+		EnterRule(_localctx, 210, RULE_sliceop);
+		int _la;
+		try {
+			EnterOuterAlt(_localctx, 1);
+			{
+			State = 1280;
+			Match(COLON);
+			State = 1282;
+			ErrorHandler.Sync(this);
+			_la = TokenStream.LA(1);
+			if ((((_la) & ~0x3f) == 0 && ((1L << _la) & 180180556205523992L) != 0) || ((((_la - 64)) & ~0x3f) == 0 && ((1L << (_la - 64)) & 12673L) != 0)) {
+				{
+				State = 1281;
+				test();
+				}
+			}
+
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class ExprlistContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public ExprContext[] expr() {
+			return GetRuleContexts<ExprContext>();
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public ExprContext expr(int i) {
+			return GetRuleContext<ExprContext>(i);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public Star_exprContext[] star_expr() {
+			return GetRuleContexts<Star_exprContext>();
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public Star_exprContext star_expr(int i) {
+			return GetRuleContext<Star_exprContext>(i);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode[] COMMA() { return GetTokens(Python3Parser.COMMA); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode COMMA(int i) {
+			return GetToken(Python3Parser.COMMA, i);
+		}
+		public ExprlistContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_exprlist; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitExprlist(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public ExprlistContext exprlist() {
+		ExprlistContext _localctx = new ExprlistContext(Context, State);
+		EnterRule(_localctx, 212, RULE_exprlist);
+		int _la;
+		try {
+			int _alt;
+			EnterOuterAlt(_localctx, 1);
+			{
+			State = 1286;
+			ErrorHandler.Sync(this);
+			switch (TokenStream.LA(1)) {
+			case STRING:
+			case NUMBER:
+			case AWAIT:
+			case FALSE:
+			case MATCH:
+			case NONE:
+			case TRUE:
+			case UNDERSCORE:
+			case NAME:
+			case ELLIPSIS:
+			case OPEN_PAREN:
+			case OPEN_BRACK:
+			case ADD:
+			case MINUS:
+			case NOT_OP:
+			case OPEN_BRACE:
+				{
+				State = 1284;
+				expr(0);
+				}
+				break;
+			case STAR:
+				{
+				State = 1285;
+				star_expr();
+				}
+				break;
+			default:
+				throw new NoViableAltException(this);
+			}
+			State = 1295;
+			ErrorHandler.Sync(this);
+			_alt = Interpreter.AdaptivePredict(TokenStream,173,Context);
+			while ( _alt!=2 && _alt!=global::Antlr4.Runtime.Atn.ATN.INVALID_ALT_NUMBER ) {
+				if ( _alt==1 ) {
+					{
+					{
+					State = 1288;
+					Match(COMMA);
+					State = 1291;
+					ErrorHandler.Sync(this);
+					switch (TokenStream.LA(1)) {
+					case STRING:
+					case NUMBER:
+					case AWAIT:
+					case FALSE:
+					case MATCH:
+					case NONE:
+					case TRUE:
+					case UNDERSCORE:
+					case NAME:
+					case ELLIPSIS:
+					case OPEN_PAREN:
+					case OPEN_BRACK:
+					case ADD:
+					case MINUS:
+					case NOT_OP:
+					case OPEN_BRACE:
+						{
+						State = 1289;
+						expr(0);
+						}
+						break;
+					case STAR:
+						{
+						State = 1290;
+						star_expr();
+						}
+						break;
+					default:
+						throw new NoViableAltException(this);
+					}
+					}
+					} 
+				}
+				State = 1297;
+				ErrorHandler.Sync(this);
+				_alt = Interpreter.AdaptivePredict(TokenStream,173,Context);
+			}
+			State = 1299;
+			ErrorHandler.Sync(this);
+			_la = TokenStream.LA(1);
+			if (_la==COMMA) {
+				{
+				State = 1298;
+				Match(COMMA);
+				}
+			}
+
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class TestlistContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public TestContext[] test() {
+			return GetRuleContexts<TestContext>();
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public TestContext test(int i) {
+			return GetRuleContext<TestContext>(i);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode[] COMMA() { return GetTokens(Python3Parser.COMMA); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode COMMA(int i) {
+			return GetToken(Python3Parser.COMMA, i);
+		}
+		public TestlistContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_testlist; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitTestlist(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public TestlistContext testlist() {
+		TestlistContext _localctx = new TestlistContext(Context, State);
+		EnterRule(_localctx, 214, RULE_testlist);
+		int _la;
+		try {
+			int _alt;
+			EnterOuterAlt(_localctx, 1);
+			{
+			State = 1301;
+			test();
+			State = 1306;
+			ErrorHandler.Sync(this);
+			_alt = Interpreter.AdaptivePredict(TokenStream,175,Context);
+			while ( _alt!=2 && _alt!=global::Antlr4.Runtime.Atn.ATN.INVALID_ALT_NUMBER ) {
+				if ( _alt==1 ) {
+					{
+					{
+					State = 1302;
+					Match(COMMA);
+					State = 1303;
+					test();
+					}
+					} 
+				}
+				State = 1308;
+				ErrorHandler.Sync(this);
+				_alt = Interpreter.AdaptivePredict(TokenStream,175,Context);
+			}
+			State = 1310;
+			ErrorHandler.Sync(this);
+			_la = TokenStream.LA(1);
+			if (_la==COMMA) {
+				{
+				State = 1309;
+				Match(COMMA);
+				}
+			}
+
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class DictorsetmakerContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public TestContext[] test() {
+			return GetRuleContexts<TestContext>();
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public TestContext test(int i) {
+			return GetRuleContext<TestContext>(i);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode[] COLON() { return GetTokens(Python3Parser.COLON); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode COLON(int i) {
+			return GetToken(Python3Parser.COLON, i);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode[] POWER() { return GetTokens(Python3Parser.POWER); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode POWER(int i) {
+			return GetToken(Python3Parser.POWER, i);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public ExprContext[] expr() {
+			return GetRuleContexts<ExprContext>();
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public ExprContext expr(int i) {
+			return GetRuleContext<ExprContext>(i);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public Comp_forContext comp_for() {
+			return GetRuleContext<Comp_forContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public Star_exprContext[] star_expr() {
+			return GetRuleContexts<Star_exprContext>();
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public Star_exprContext star_expr(int i) {
+			return GetRuleContext<Star_exprContext>(i);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode[] COMMA() { return GetTokens(Python3Parser.COMMA); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode COMMA(int i) {
+			return GetToken(Python3Parser.COMMA, i);
+		}
+		public DictorsetmakerContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_dictorsetmaker; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitDictorsetmaker(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public DictorsetmakerContext dictorsetmaker() {
+		DictorsetmakerContext _localctx = new DictorsetmakerContext(Context, State);
+		EnterRule(_localctx, 216, RULE_dictorsetmaker);
+		int _la;
+		try {
+			int _alt;
+			EnterOuterAlt(_localctx, 1);
+			{
+			State = 1360;
+			ErrorHandler.Sync(this);
+			switch ( Interpreter.AdaptivePredict(TokenStream,187,Context) ) {
+			case 1:
+				{
+				{
+				State = 1318;
+				ErrorHandler.Sync(this);
+				switch (TokenStream.LA(1)) {
+				case STRING:
+				case NUMBER:
+				case AWAIT:
+				case FALSE:
+				case LAMBDA:
+				case MATCH:
+				case NONE:
+				case NOT:
+				case TRUE:
+				case UNDERSCORE:
+				case NAME:
+				case ELLIPSIS:
+				case OPEN_PAREN:
+				case OPEN_BRACK:
+				case ADD:
+				case MINUS:
+				case NOT_OP:
+				case OPEN_BRACE:
+					{
+					State = 1312;
+					test();
+					State = 1313;
+					Match(COLON);
+					State = 1314;
+					test();
+					}
+					break;
+				case POWER:
+					{
+					State = 1316;
+					Match(POWER);
+					State = 1317;
+					expr(0);
+					}
+					break;
+				default:
+					throw new NoViableAltException(this);
+				}
+				State = 1338;
+				ErrorHandler.Sync(this);
+				switch (TokenStream.LA(1)) {
+				case ASYNC:
+				case FOR:
+					{
+					State = 1320;
+					comp_for();
+					}
+					break;
+				case COMMA:
+				case CLOSE_BRACE:
+					{
+					State = 1332;
+					ErrorHandler.Sync(this);
+					_alt = Interpreter.AdaptivePredict(TokenStream,179,Context);
+					while ( _alt!=2 && _alt!=global::Antlr4.Runtime.Atn.ATN.INVALID_ALT_NUMBER ) {
+						if ( _alt==1 ) {
+							{
+							{
+							State = 1321;
+							Match(COMMA);
+							State = 1328;
+							ErrorHandler.Sync(this);
+							switch (TokenStream.LA(1)) {
+							case STRING:
+							case NUMBER:
+							case AWAIT:
+							case FALSE:
+							case LAMBDA:
+							case MATCH:
+							case NONE:
+							case NOT:
+							case TRUE:
+							case UNDERSCORE:
+							case NAME:
+							case ELLIPSIS:
+							case OPEN_PAREN:
+							case OPEN_BRACK:
+							case ADD:
+							case MINUS:
+							case NOT_OP:
+							case OPEN_BRACE:
+								{
+								State = 1322;
+								test();
+								State = 1323;
+								Match(COLON);
+								State = 1324;
+								test();
+								}
+								break;
+							case POWER:
+								{
+								State = 1326;
+								Match(POWER);
+								State = 1327;
+								expr(0);
+								}
+								break;
+							default:
+								throw new NoViableAltException(this);
+							}
+							}
+							} 
+						}
+						State = 1334;
+						ErrorHandler.Sync(this);
+						_alt = Interpreter.AdaptivePredict(TokenStream,179,Context);
+					}
+					State = 1336;
+					ErrorHandler.Sync(this);
+					_la = TokenStream.LA(1);
+					if (_la==COMMA) {
+						{
+						State = 1335;
+						Match(COMMA);
+						}
+					}
+
+					}
+					break;
+				default:
+					throw new NoViableAltException(this);
+				}
+				}
+				}
+				break;
+			case 2:
+				{
+				{
+				State = 1342;
+				ErrorHandler.Sync(this);
+				switch (TokenStream.LA(1)) {
+				case STRING:
+				case NUMBER:
+				case AWAIT:
+				case FALSE:
+				case LAMBDA:
+				case MATCH:
+				case NONE:
+				case NOT:
+				case TRUE:
+				case UNDERSCORE:
+				case NAME:
+				case ELLIPSIS:
+				case OPEN_PAREN:
+				case OPEN_BRACK:
+				case ADD:
+				case MINUS:
+				case NOT_OP:
+				case OPEN_BRACE:
+					{
+					State = 1340;
+					test();
+					}
+					break;
+				case STAR:
+					{
+					State = 1341;
+					star_expr();
+					}
+					break;
+				default:
+					throw new NoViableAltException(this);
+				}
+				State = 1358;
+				ErrorHandler.Sync(this);
+				switch (TokenStream.LA(1)) {
+				case ASYNC:
+				case FOR:
+					{
+					State = 1344;
+					comp_for();
+					}
+					break;
+				case COMMA:
+				case CLOSE_BRACE:
+					{
+					State = 1352;
+					ErrorHandler.Sync(this);
+					_alt = Interpreter.AdaptivePredict(TokenStream,184,Context);
+					while ( _alt!=2 && _alt!=global::Antlr4.Runtime.Atn.ATN.INVALID_ALT_NUMBER ) {
+						if ( _alt==1 ) {
+							{
+							{
+							State = 1345;
+							Match(COMMA);
+							State = 1348;
+							ErrorHandler.Sync(this);
+							switch (TokenStream.LA(1)) {
+							case STRING:
+							case NUMBER:
+							case AWAIT:
+							case FALSE:
+							case LAMBDA:
+							case MATCH:
+							case NONE:
+							case NOT:
+							case TRUE:
+							case UNDERSCORE:
+							case NAME:
+							case ELLIPSIS:
+							case OPEN_PAREN:
+							case OPEN_BRACK:
+							case ADD:
+							case MINUS:
+							case NOT_OP:
+							case OPEN_BRACE:
+								{
+								State = 1346;
+								test();
+								}
+								break;
+							case STAR:
+								{
+								State = 1347;
+								star_expr();
+								}
+								break;
+							default:
+								throw new NoViableAltException(this);
+							}
+							}
+							} 
+						}
+						State = 1354;
+						ErrorHandler.Sync(this);
+						_alt = Interpreter.AdaptivePredict(TokenStream,184,Context);
+					}
+					State = 1356;
+					ErrorHandler.Sync(this);
+					_la = TokenStream.LA(1);
+					if (_la==COMMA) {
+						{
+						State = 1355;
+						Match(COMMA);
+						}
+					}
+
+					}
+					break;
+				default:
+					throw new NoViableAltException(this);
+				}
+				}
+				}
+				break;
+			}
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class ClassdefContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode CLASS() { return GetToken(Python3Parser.CLASS, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public NameContext name() {
+			return GetRuleContext<NameContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode COLON() { return GetToken(Python3Parser.COLON, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public BlockContext block() {
+			return GetRuleContext<BlockContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode OPEN_PAREN() { return GetToken(Python3Parser.OPEN_PAREN, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode CLOSE_PAREN() { return GetToken(Python3Parser.CLOSE_PAREN, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public ArglistContext arglist() {
+			return GetRuleContext<ArglistContext>(0);
+		}
+		public ClassdefContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_classdef; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitClassdef(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public ClassdefContext classdef() {
+		ClassdefContext _localctx = new ClassdefContext(Context, State);
+		EnterRule(_localctx, 218, RULE_classdef);
+		int _la;
+		try {
+			EnterOuterAlt(_localctx, 1);
+			{
+			State = 1362;
+			Match(CLASS);
+			State = 1363;
+			name();
+			State = 1369;
+			ErrorHandler.Sync(this);
+			_la = TokenStream.LA(1);
+			if (_la==OPEN_PAREN) {
+				{
+				State = 1364;
+				Match(OPEN_PAREN);
+				State = 1366;
+				ErrorHandler.Sync(this);
+				_la = TokenStream.LA(1);
+				if ((((_la) & ~0x3f) == 0 && ((1L << _la) & 4863924168670839832L) != 0) || ((((_la - 64)) & ~0x3f) == 0 && ((1L << (_la - 64)) & 12673L) != 0)) {
+					{
+					State = 1365;
+					arglist();
+					}
+				}
+
+				State = 1368;
+				Match(CLOSE_PAREN);
+				}
+			}
+
+			State = 1371;
+			Match(COLON);
+			State = 1372;
+			block();
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class ArglistContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public ArgumentContext[] argument() {
+			return GetRuleContexts<ArgumentContext>();
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public ArgumentContext argument(int i) {
+			return GetRuleContext<ArgumentContext>(i);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode[] COMMA() { return GetTokens(Python3Parser.COMMA); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode COMMA(int i) {
+			return GetToken(Python3Parser.COMMA, i);
+		}
+		public ArglistContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_arglist; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitArglist(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public ArglistContext arglist() {
+		ArglistContext _localctx = new ArglistContext(Context, State);
+		EnterRule(_localctx, 220, RULE_arglist);
+		int _la;
+		try {
+			int _alt;
+			EnterOuterAlt(_localctx, 1);
+			{
+			State = 1374;
+			argument();
+			State = 1379;
+			ErrorHandler.Sync(this);
+			_alt = Interpreter.AdaptivePredict(TokenStream,190,Context);
+			while ( _alt!=2 && _alt!=global::Antlr4.Runtime.Atn.ATN.INVALID_ALT_NUMBER ) {
+				if ( _alt==1 ) {
+					{
+					{
+					State = 1375;
+					Match(COMMA);
+					State = 1376;
+					argument();
+					}
+					} 
+				}
+				State = 1381;
+				ErrorHandler.Sync(this);
+				_alt = Interpreter.AdaptivePredict(TokenStream,190,Context);
+			}
+			State = 1383;
+			ErrorHandler.Sync(this);
+			_la = TokenStream.LA(1);
+			if (_la==COMMA) {
+				{
+				State = 1382;
+				Match(COMMA);
+				}
+			}
+
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class ArgumentContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public TestContext[] test() {
+			return GetRuleContexts<TestContext>();
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public TestContext test(int i) {
+			return GetRuleContext<TestContext>(i);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode ASSIGN() { return GetToken(Python3Parser.ASSIGN, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode POWER() { return GetToken(Python3Parser.POWER, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode STAR() { return GetToken(Python3Parser.STAR, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public Comp_forContext comp_for() {
+			return GetRuleContext<Comp_forContext>(0);
+		}
+		public ArgumentContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_argument; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitArgument(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public ArgumentContext argument() {
+		ArgumentContext _localctx = new ArgumentContext(Context, State);
+		EnterRule(_localctx, 222, RULE_argument);
+		int _la;
+		try {
+			EnterOuterAlt(_localctx, 1);
+			{
+			State = 1397;
+			ErrorHandler.Sync(this);
+			switch ( Interpreter.AdaptivePredict(TokenStream,193,Context) ) {
+			case 1:
+				{
+				State = 1385;
+				test();
+				State = 1387;
+				ErrorHandler.Sync(this);
+				_la = TokenStream.LA(1);
+				if (_la==ASYNC || _la==FOR) {
+					{
+					State = 1386;
+					comp_for();
+					}
+				}
+
+				}
+				break;
+			case 2:
+				{
+				State = 1389;
+				test();
+				State = 1390;
+				Match(ASSIGN);
+				State = 1391;
+				test();
+				}
+				break;
+			case 3:
+				{
+				State = 1393;
+				Match(POWER);
+				State = 1394;
+				test();
+				}
+				break;
+			case 4:
+				{
+				State = 1395;
+				Match(STAR);
+				State = 1396;
+				test();
+				}
+				break;
+			}
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class Comp_iterContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public Comp_forContext comp_for() {
+			return GetRuleContext<Comp_forContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public Comp_ifContext comp_if() {
+			return GetRuleContext<Comp_ifContext>(0);
+		}
+		public Comp_iterContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_comp_iter; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitComp_iter(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public Comp_iterContext comp_iter() {
+		Comp_iterContext _localctx = new Comp_iterContext(Context, State);
+		EnterRule(_localctx, 224, RULE_comp_iter);
+		try {
+			State = 1401;
+			ErrorHandler.Sync(this);
+			switch (TokenStream.LA(1)) {
+			case ASYNC:
+			case FOR:
+				EnterOuterAlt(_localctx, 1);
+				{
+				State = 1399;
+				comp_for();
+				}
+				break;
+			case IF:
+				EnterOuterAlt(_localctx, 2);
+				{
+				State = 1400;
+				comp_if();
+				}
+				break;
+			default:
+				throw new NoViableAltException(this);
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class Comp_forContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode FOR() { return GetToken(Python3Parser.FOR, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public ExprlistContext exprlist() {
+			return GetRuleContext<ExprlistContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode IN() { return GetToken(Python3Parser.IN, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public Or_testContext or_test() {
+			return GetRuleContext<Or_testContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode ASYNC() { return GetToken(Python3Parser.ASYNC, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public Comp_iterContext comp_iter() {
+			return GetRuleContext<Comp_iterContext>(0);
+		}
+		public Comp_forContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_comp_for; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitComp_for(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public Comp_forContext comp_for() {
+		Comp_forContext _localctx = new Comp_forContext(Context, State);
+		EnterRule(_localctx, 226, RULE_comp_for);
+		int _la;
+		try {
+			EnterOuterAlt(_localctx, 1);
+			{
+			State = 1404;
+			ErrorHandler.Sync(this);
+			_la = TokenStream.LA(1);
+			if (_la==ASYNC) {
+				{
+				State = 1403;
+				Match(ASYNC);
+				}
+			}
+
+			State = 1406;
+			Match(FOR);
+			State = 1407;
+			exprlist();
+			State = 1408;
+			Match(IN);
+			State = 1409;
+			or_test();
+			State = 1411;
+			ErrorHandler.Sync(this);
+			_la = TokenStream.LA(1);
+			if ((((_la) & ~0x3f) == 0 && ((1L << _la) & 37749248L) != 0)) {
+				{
+				State = 1410;
+				comp_iter();
+				}
+			}
+
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class Comp_ifContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode IF() { return GetToken(Python3Parser.IF, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public Test_nocondContext test_nocond() {
+			return GetRuleContext<Test_nocondContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public Comp_iterContext comp_iter() {
+			return GetRuleContext<Comp_iterContext>(0);
+		}
+		public Comp_ifContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_comp_if; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitComp_if(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public Comp_ifContext comp_if() {
+		Comp_ifContext _localctx = new Comp_ifContext(Context, State);
+		EnterRule(_localctx, 228, RULE_comp_if);
+		int _la;
+		try {
+			EnterOuterAlt(_localctx, 1);
+			{
+			State = 1413;
+			Match(IF);
+			State = 1414;
+			test_nocond();
+			State = 1416;
+			ErrorHandler.Sync(this);
+			_la = TokenStream.LA(1);
+			if ((((_la) & ~0x3f) == 0 && ((1L << _la) & 37749248L) != 0)) {
+				{
+				State = 1415;
+				comp_iter();
+				}
+			}
+
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class Encoding_declContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public NameContext name() {
+			return GetRuleContext<NameContext>(0);
+		}
+		public Encoding_declContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_encoding_decl; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitEncoding_decl(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public Encoding_declContext encoding_decl() {
+		Encoding_declContext _localctx = new Encoding_declContext(Context, State);
+		EnterRule(_localctx, 230, RULE_encoding_decl);
+		try {
+			EnterOuterAlt(_localctx, 1);
+			{
+			State = 1418;
+			name();
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class Yield_exprContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode YIELD() { return GetToken(Python3Parser.YIELD, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public Yield_argContext yield_arg() {
+			return GetRuleContext<Yield_argContext>(0);
+		}
+		public Yield_exprContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_yield_expr; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitYield_expr(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public Yield_exprContext yield_expr() {
+		Yield_exprContext _localctx = new Yield_exprContext(Context, State);
+		EnterRule(_localctx, 232, RULE_yield_expr);
+		int _la;
+		try {
+			EnterOuterAlt(_localctx, 1);
+			{
+			State = 1420;
+			Match(YIELD);
+			State = 1422;
+			ErrorHandler.Sync(this);
+			_la = TokenStream.LA(1);
+			if ((((_la) & ~0x3f) == 0 && ((1L << _la) & 180180556213912600L) != 0) || ((((_la - 64)) & ~0x3f) == 0 && ((1L << (_la - 64)) & 12673L) != 0)) {
+				{
+				State = 1421;
+				yield_arg();
+				}
+			}
+
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class Yield_argContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode FROM() { return GetToken(Python3Parser.FROM, 0); }
+		[System.Diagnostics.DebuggerNonUserCode] public TestContext test() {
+			return GetRuleContext<TestContext>(0);
+		}
+		[System.Diagnostics.DebuggerNonUserCode] public TestlistContext testlist() {
+			return GetRuleContext<TestlistContext>(0);
+		}
+		public Yield_argContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_yield_arg; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitYield_arg(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public Yield_argContext yield_arg() {
+		Yield_argContext _localctx = new Yield_argContext(Context, State);
+		EnterRule(_localctx, 234, RULE_yield_arg);
+		try {
+			State = 1427;
+			ErrorHandler.Sync(this);
+			switch (TokenStream.LA(1)) {
+			case FROM:
+				EnterOuterAlt(_localctx, 1);
+				{
+				State = 1424;
+				Match(FROM);
+				State = 1425;
+				test();
+				}
+				break;
+			case STRING:
+			case NUMBER:
+			case AWAIT:
+			case FALSE:
+			case LAMBDA:
+			case MATCH:
+			case NONE:
+			case NOT:
+			case TRUE:
+			case UNDERSCORE:
+			case NAME:
+			case ELLIPSIS:
+			case OPEN_PAREN:
+			case OPEN_BRACK:
+			case ADD:
+			case MINUS:
+			case NOT_OP:
+			case OPEN_BRACE:
+				EnterOuterAlt(_localctx, 2);
+				{
+				State = 1426;
+				testlist();
+				}
+				break;
+			default:
+				throw new NoViableAltException(this);
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public partial class StringsContext : ParserRuleContext {
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode[] STRING() { return GetTokens(Python3Parser.STRING); }
+		[System.Diagnostics.DebuggerNonUserCode] public ITerminalNode STRING(int i) {
+			return GetToken(Python3Parser.STRING, i);
+		}
+		public StringsContext(ParserRuleContext parent, int invokingState)
+			: base(parent, invokingState)
+		{
+		}
+		public override int RuleIndex { get { return RULE_strings; } }
+		[System.Diagnostics.DebuggerNonUserCode]
+		public override TResult Accept<TResult>(IParseTreeVisitor<TResult> visitor) {
+			IPython3ParserVisitor<TResult> typedVisitor = visitor as IPython3ParserVisitor<TResult>;
+			if (typedVisitor != null) return typedVisitor.VisitStrings(this);
+			else return visitor.VisitChildren(this);
+		}
+	}
+
+	[RuleVersion(0)]
+	public StringsContext strings() {
+		StringsContext _localctx = new StringsContext(Context, State);
+		EnterRule(_localctx, 236, RULE_strings);
+		int _la;
+		try {
+			EnterOuterAlt(_localctx, 1);
+			{
+			State = 1430;
+			ErrorHandler.Sync(this);
+			_la = TokenStream.LA(1);
+			do {
+				{
+				{
+				State = 1429;
+				Match(STRING);
+				}
+				}
+				State = 1432;
+				ErrorHandler.Sync(this);
+				_la = TokenStream.LA(1);
+			} while ( _la==STRING );
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			ErrorHandler.ReportError(this, re);
+			ErrorHandler.Recover(this, re);
+		}
+		finally {
+			ExitRule();
+		}
+		return _localctx;
+	}
+
+	public override bool Sempred(RuleContext _localctx, int ruleIndex, int predIndex) {
+		switch (ruleIndex) {
+		case 60: return literal_pattern_sempred((Literal_patternContext)_localctx, predIndex);
+		case 61: return literal_expr_sempred((Literal_exprContext)_localctx, predIndex);
+		case 68: return pattern_capture_target_sempred((Pattern_capture_targetContext)_localctx, predIndex);
+		case 70: return value_pattern_sempred((Value_patternContext)_localctx, predIndex);
+		case 97: return expr_sempred((ExprContext)_localctx, predIndex);
+		}
+		return true;
+	}
+	private bool literal_pattern_sempred(Literal_patternContext _localctx, int predIndex) {
+		switch (predIndex) {
+		case 0: return  this.CannotBePlusMinus() ;
+		}
+		return true;
+	}
+	private bool literal_expr_sempred(Literal_exprContext _localctx, int predIndex) {
+		switch (predIndex) {
+		case 1: return  this.CannotBePlusMinus() ;
+		}
+		return true;
+	}
+	private bool pattern_capture_target_sempred(Pattern_capture_targetContext _localctx, int predIndex) {
+		switch (predIndex) {
+		case 2: return  this.CannotBeDotLpEq() ;
+		}
+		return true;
+	}
+	private bool value_pattern_sempred(Value_patternContext _localctx, int predIndex) {
+		switch (predIndex) {
+		case 3: return  this.CannotBeDotLpEq() ;
+		}
+		return true;
+	}
+	private bool expr_sempred(ExprContext _localctx, int predIndex) {
+		switch (predIndex) {
+		case 4: return Precpred(Context, 8);
+		case 5: return Precpred(Context, 6);
+		case 6: return Precpred(Context, 5);
+		case 7: return Precpred(Context, 4);
+		case 8: return Precpred(Context, 3);
+		case 9: return Precpred(Context, 2);
+		case 10: return Precpred(Context, 1);
+		}
+		return true;
+	}
+
+	private static int[] _serializedATN = {
+		4,1,102,1435,2,0,7,0,2,1,7,1,2,2,7,2,2,3,7,3,2,4,7,4,2,5,7,5,2,6,7,6,2,
+		7,7,7,2,8,7,8,2,9,7,9,2,10,7,10,2,11,7,11,2,12,7,12,2,13,7,13,2,14,7,14,
+		2,15,7,15,2,16,7,16,2,17,7,17,2,18,7,18,2,19,7,19,2,20,7,20,2,21,7,21,
+		2,22,7,22,2,23,7,23,2,24,7,24,2,25,7,25,2,26,7,26,2,27,7,27,2,28,7,28,
+		2,29,7,29,2,30,7,30,2,31,7,31,2,32,7,32,2,33,7,33,2,34,7,34,2,35,7,35,
+		2,36,7,36,2,37,7,37,2,38,7,38,2,39,7,39,2,40,7,40,2,41,7,41,2,42,7,42,
+		2,43,7,43,2,44,7,44,2,45,7,45,2,46,7,46,2,47,7,47,2,48,7,48,2,49,7,49,
+		2,50,7,50,2,51,7,51,2,52,7,52,2,53,7,53,2,54,7,54,2,55,7,55,2,56,7,56,
+		2,57,7,57,2,58,7,58,2,59,7,59,2,60,7,60,2,61,7,61,2,62,7,62,2,63,7,63,
+		2,64,7,64,2,65,7,65,2,66,7,66,2,67,7,67,2,68,7,68,2,69,7,69,2,70,7,70,
+		2,71,7,71,2,72,7,72,2,73,7,73,2,74,7,74,2,75,7,75,2,76,7,76,2,77,7,77,
+		2,78,7,78,2,79,7,79,2,80,7,80,2,81,7,81,2,82,7,82,2,83,7,83,2,84,7,84,
+		2,85,7,85,2,86,7,86,2,87,7,87,2,88,7,88,2,89,7,89,2,90,7,90,2,91,7,91,
+		2,92,7,92,2,93,7,93,2,94,7,94,2,95,7,95,2,96,7,96,2,97,7,97,2,98,7,98,
+		2,99,7,99,2,100,7,100,2,101,7,101,2,102,7,102,2,103,7,103,2,104,7,104,
+		2,105,7,105,2,106,7,106,2,107,7,107,2,108,7,108,2,109,7,109,2,110,7,110,
+		2,111,7,111,2,112,7,112,2,113,7,113,2,114,7,114,2,115,7,115,2,116,7,116,
+		2,117,7,117,2,118,7,118,1,0,1,0,1,0,1,0,1,0,3,0,244,8,0,1,1,1,1,5,1,248,
+		8,1,10,1,12,1,251,9,1,1,1,1,1,1,2,1,2,5,2,257,8,2,10,2,12,2,260,9,2,1,
+		2,1,2,1,3,1,3,1,3,1,3,3,3,268,8,3,1,3,3,3,271,8,3,1,3,1,3,1,4,4,4,276,
+		8,4,11,4,12,4,277,1,5,1,5,1,5,1,5,3,5,284,8,5,1,6,1,6,1,6,1,7,1,7,1,7,
+		1,7,1,7,3,7,294,8,7,1,7,1,7,1,7,1,8,1,8,3,8,301,8,8,1,8,1,8,1,9,1,9,1,
+		9,3,9,308,8,9,1,9,1,9,1,9,1,9,3,9,314,8,9,5,9,316,8,9,10,9,12,9,319,9,
+		9,1,9,1,9,1,9,3,9,324,8,9,1,9,1,9,1,9,1,9,3,9,330,8,9,5,9,332,8,9,10,9,
+		12,9,335,9,9,1,9,1,9,1,9,1,9,3,9,341,8,9,3,9,343,8,9,3,9,345,8,9,1,9,1,
+		9,1,9,3,9,350,8,9,3,9,352,8,9,3,9,354,8,9,1,9,1,9,3,9,358,8,9,1,9,1,9,
+		1,9,1,9,3,9,364,8,9,5,9,366,8,9,10,9,12,9,369,9,9,1,9,1,9,1,9,1,9,3,9,
+		375,8,9,3,9,377,8,9,3,9,379,8,9,1,9,1,9,1,9,3,9,384,8,9,3,9,386,8,9,1,
+		10,1,10,1,10,3,10,391,8,10,1,11,1,11,1,11,3,11,396,8,11,1,11,1,11,1,11,
+		1,11,3,11,402,8,11,5,11,404,8,11,10,11,12,11,407,9,11,1,11,1,11,1,11,3,
+		11,412,8,11,1,11,1,11,1,11,1,11,3,11,418,8,11,5,11,420,8,11,10,11,12,11,
+		423,9,11,1,11,1,11,1,11,1,11,3,11,429,8,11,3,11,431,8,11,3,11,433,8,11,
+		1,11,1,11,1,11,3,11,438,8,11,3,11,440,8,11,3,11,442,8,11,1,11,1,11,3,11,
+		446,8,11,1,11,1,11,1,11,1,11,3,11,452,8,11,5,11,454,8,11,10,11,12,11,457,
+		9,11,1,11,1,11,1,11,1,11,3,11,463,8,11,3,11,465,8,11,3,11,467,8,11,1,11,
+		1,11,1,11,3,11,472,8,11,3,11,474,8,11,1,12,1,12,1,13,1,13,3,13,480,8,13,
+		1,14,1,14,1,14,5,14,485,8,14,10,14,12,14,488,9,14,1,14,3,14,491,8,14,1,
+		14,1,14,1,15,1,15,1,15,1,15,1,15,1,15,1,15,1,15,3,15,503,8,15,1,16,1,16,
+		1,16,1,16,1,16,3,16,510,8,16,1,16,1,16,1,16,3,16,515,8,16,5,16,517,8,16,
+		10,16,12,16,520,9,16,3,16,522,8,16,1,17,1,17,1,17,1,17,3,17,528,8,17,1,
+		18,1,18,3,18,532,8,18,1,18,1,18,1,18,3,18,537,8,18,5,18,539,8,18,10,18,
+		12,18,542,9,18,1,18,3,18,545,8,18,1,19,1,19,1,20,1,20,1,20,1,21,1,21,1,
+		22,1,22,1,22,1,22,1,22,3,22,559,8,22,1,23,1,23,1,24,1,24,1,25,1,25,3,25,
+		567,8,25,1,26,1,26,1,27,1,27,1,27,1,27,3,27,575,8,27,3,27,577,8,27,1,28,
+		1,28,3,28,581,8,28,1,29,1,29,1,29,1,30,1,30,5,30,588,8,30,10,30,12,30,
+		591,9,30,1,30,1,30,4,30,595,8,30,11,30,12,30,596,3,30,599,8,30,1,30,1,
+		30,1,30,1,30,1,30,1,30,1,30,3,30,608,8,30,1,31,1,31,1,31,3,31,613,8,31,
+		1,32,1,32,1,32,3,32,618,8,32,1,33,1,33,1,33,5,33,623,8,33,10,33,12,33,
+		626,9,33,1,33,3,33,629,8,33,1,34,1,34,1,34,5,34,634,8,34,10,34,12,34,637,
+		9,34,1,35,1,35,1,35,5,35,642,8,35,10,35,12,35,645,9,35,1,36,1,36,1,36,
+		1,36,5,36,651,8,36,10,36,12,36,654,9,36,1,37,1,37,1,37,1,37,5,37,660,8,
+		37,10,37,12,37,663,9,37,1,38,1,38,1,38,1,38,3,38,669,8,38,1,39,1,39,1,
+		39,1,39,1,39,1,39,1,39,1,39,1,39,1,39,3,39,681,8,39,1,40,1,40,1,40,1,40,
+		3,40,687,8,40,1,41,1,41,1,41,1,41,1,41,1,41,1,41,1,41,1,41,5,41,698,8,
+		41,10,41,12,41,701,9,41,1,41,1,41,1,41,3,41,706,8,41,1,42,1,42,1,42,1,
+		42,1,42,1,42,1,42,3,42,715,8,42,1,43,1,43,1,43,1,43,1,43,1,43,1,43,1,43,
+		1,43,3,43,726,8,43,1,44,1,44,1,44,1,44,1,44,1,44,1,44,4,44,735,8,44,11,
+		44,12,44,736,1,44,1,44,1,44,3,44,742,8,44,1,44,1,44,1,44,3,44,747,8,44,
+		1,44,1,44,1,44,3,44,752,8,44,1,45,1,45,1,45,1,45,5,45,758,8,45,10,45,12,
+		45,761,9,45,1,45,1,45,1,45,1,46,1,46,1,46,3,46,769,8,46,1,47,1,47,1,47,
+		1,47,3,47,775,8,47,3,47,777,8,47,1,48,1,48,1,48,1,48,4,48,783,8,48,11,
+		48,12,48,784,1,48,1,48,3,48,789,8,48,1,49,1,49,1,49,1,49,1,49,1,49,4,49,
+		797,8,49,11,49,12,49,798,1,49,1,49,1,50,1,50,1,50,3,50,806,8,50,1,50,3,
+		50,809,8,50,1,51,1,51,4,51,813,8,51,11,51,12,51,814,1,51,3,51,818,8,51,
+		1,52,1,52,1,52,3,52,823,8,52,1,53,1,53,1,53,3,53,828,8,53,1,53,1,53,1,
+		53,1,54,1,54,1,54,1,55,1,55,3,55,838,8,55,1,56,1,56,3,56,842,8,56,1,57,
+		1,57,1,57,1,57,1,58,1,58,1,58,5,58,851,8,58,10,58,12,58,854,9,58,1,59,
+		1,59,1,59,1,59,1,59,1,59,1,59,1,59,3,59,864,8,59,1,60,1,60,1,60,1,60,1,
+		60,1,60,1,60,1,60,3,60,874,8,60,1,61,1,61,1,61,1,61,1,61,1,61,1,61,1,61,
+		3,61,884,8,61,1,62,1,62,1,62,1,62,1,62,1,62,1,62,1,62,3,62,894,8,62,1,
+		63,1,63,1,63,3,63,899,8,63,1,64,1,64,1,64,3,64,904,8,64,1,65,1,65,1,66,
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+		1367,3,220,110,0,1366,1365,1,0,0,0,1366,1367,1,0,0,0,1367,1368,1,0,0,0,
+		1368,1370,5,58,0,0,1369,1364,1,0,0,0,1369,1370,1,0,0,0,1370,1371,1,0,0,
+		0,1371,1372,5,60,0,0,1372,1373,3,96,48,0,1373,219,1,0,0,0,1374,1379,3,
+		222,111,0,1375,1376,5,59,0,0,1376,1378,3,222,111,0,1377,1375,1,0,0,0,1378,
+		1381,1,0,0,0,1379,1377,1,0,0,0,1379,1380,1,0,0,0,1380,1383,1,0,0,0,1381,
+		1379,1,0,0,0,1382,1384,5,59,0,0,1383,1382,1,0,0,0,1383,1384,1,0,0,0,1384,
+		221,1,0,0,0,1385,1387,3,174,87,0,1386,1388,3,226,113,0,1387,1386,1,0,0,
+		0,1387,1388,1,0,0,0,1388,1398,1,0,0,0,1389,1390,3,174,87,0,1390,1391,5,
+		63,0,0,1391,1392,3,174,87,0,1392,1398,1,0,0,0,1393,1394,5,62,0,0,1394,
+		1398,3,174,87,0,1395,1396,5,56,0,0,1396,1398,3,174,87,0,1397,1385,1,0,
+		0,0,1397,1389,1,0,0,0,1397,1393,1,0,0,0,1397,1395,1,0,0,0,1398,223,1,0,
+		0,0,1399,1402,3,226,113,0,1400,1402,3,228,114,0,1401,1399,1,0,0,0,1401,
+		1400,1,0,0,0,1402,225,1,0,0,0,1403,1405,5,9,0,0,1404,1403,1,0,0,0,1404,
+		1405,1,0,0,0,1405,1406,1,0,0,0,1406,1407,5,22,0,0,1407,1408,3,212,106,
+		0,1408,1409,5,27,0,0,1409,1411,3,182,91,0,1410,1412,3,224,112,0,1411,1410,
+		1,0,0,0,1411,1412,1,0,0,0,1412,227,1,0,0,0,1413,1414,5,25,0,0,1414,1416,
+		3,176,88,0,1415,1417,3,224,112,0,1416,1415,1,0,0,0,1416,1417,1,0,0,0,1417,
+		229,1,0,0,0,1418,1419,3,200,100,0,1419,231,1,0,0,0,1420,1422,5,43,0,0,
+		1421,1423,3,234,117,0,1422,1421,1,0,0,0,1422,1423,1,0,0,0,1423,233,1,0,
+		0,0,1424,1425,5,23,0,0,1425,1428,3,174,87,0,1426,1428,3,214,107,0,1427,
+		1424,1,0,0,0,1427,1426,1,0,0,0,1428,235,1,0,0,0,1429,1431,5,3,0,0,1430,
+		1429,1,0,0,0,1431,1432,1,0,0,0,1432,1430,1,0,0,0,1432,1433,1,0,0,0,1433,
+		237,1,0,0,0,201,243,247,249,258,267,270,277,283,293,300,307,313,317,323,
+		329,333,340,342,344,349,351,353,357,363,367,374,376,378,383,385,390,395,
+		401,405,411,417,421,428,430,432,437,439,441,445,451,455,462,464,466,471,
+		473,479,486,490,502,509,514,518,521,527,531,536,540,544,558,566,574,576,
+		580,589,596,598,607,612,617,624,628,635,643,652,661,668,680,686,699,705,
+		714,725,736,741,746,751,759,768,774,776,784,788,798,805,808,814,817,822,
+		827,837,841,852,863,873,883,893,898,903,924,928,936,941,944,949,956,960,
+		964,970,977,986,993,997,1004,1009,1025,1033,1043,1047,1054,1062,1075,1078,
+		1082,1086,1093,1103,1111,1117,1125,1141,1151,1154,1177,1179,1183,1189,
+		1195,1200,1205,1213,1219,1225,1231,1235,1239,1241,1245,1254,1261,1265,
+		1269,1273,1276,1278,1282,1286,1291,1295,1299,1306,1310,1318,1328,1332,
+		1336,1338,1342,1348,1352,1356,1358,1360,1366,1369,1379,1383,1387,1397,
+		1401,1404,1411,1416,1422,1427,1432
+	};
+
+	public static readonly ATN _ATN =
+		new ATNDeserializer().Deserialize(_serializedATN);
+
+
+}
+
+}
diff --git a/LINVAST.Imperative/Builders/Python/ANTLR/Python3Parser.g4 b/LINVAST.Imperative/Builders/Python/ANTLR/Python3Parser.g4
new file mode 100644
index 0000000..4c5a27c
--- /dev/null
+++ b/LINVAST.Imperative/Builders/Python/ANTLR/Python3Parser.g4
@@ -0,0 +1,694 @@
+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2014 by Bart Kiers
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Project      : python3-parser; an ANTLR4 grammar for Python 3
+ *                https://github.com/bkiers/python3-parser
+ * Developed by : Bart Kiers, bart@big-o.nl
+ */
+
+// Scraping from https://docs.python.org/3/reference/grammar.html
+
+// $antlr-format alignTrailingComments true, columnLimit 150, minEmptyLines 1, maxEmptyLinesToKeep 1, reflowComments false, useTab false
+// $antlr-format allowShortRulesOnASingleLine false, allowShortBlocksOnASingleLine true, alignSemicolons hanging, alignColons hanging
+
+parser grammar Python3Parser;
+
+options {
+    superClass = Python3ParserBase;
+    tokenVocab = Python3Lexer;
+}
+
+// Insert here @header for C++ parser.
+
+// All comments that start with "///" are copy-pasted from
+// The Python Language Reference
+
+single_input
+    : NEWLINE
+    | simple_stmts
+    | compound_stmt NEWLINE
+    ;
+
+file_input
+    : (NEWLINE | stmt)* EOF
+    ;
+
+eval_input
+    : testlist NEWLINE* EOF
+    ;
+
+decorator
+    : '@' dotted_name ('(' arglist? ')')? NEWLINE
+    ;
+
+decorators
+    : decorator+
+    ;
+
+decorated
+    : decorators (classdef | funcdef | async_funcdef)
+    ;
+
+async_funcdef
+    : ASYNC funcdef
+    ;
+
+funcdef
+    : 'def' name parameters ('->' test)? ':' block
+    ;
+
+parameters
+    : '(' typedargslist? ')'
+    ;
+
+typedargslist
+    : (
+        tfpdef ('=' test)? (',' tfpdef ('=' test)?)* (
+            ',' (
+                '*' tfpdef? (',' tfpdef ('=' test)?)* (',' ('**' tfpdef ','?)?)?
+                | '**' tfpdef ','?
+            )?
+        )?
+        | '*' tfpdef? (',' tfpdef ('=' test)?)* (',' ('**' tfpdef ','?)?)?
+        | '**' tfpdef ','?
+    )
+    ;
+
+tfpdef
+    : name (':' test)?
+    ;
+
+varargslist
+    : (
+        vfpdef ('=' test)? (',' vfpdef ('=' test)?)* (
+            ',' (
+                '*' vfpdef? (',' vfpdef ('=' test)?)* (',' ('**' vfpdef ','?)?)?
+                | '**' vfpdef (',')?
+            )?
+        )?
+        | '*' vfpdef? (',' vfpdef ('=' test)?)* (',' ('**' vfpdef ','?)?)?
+        | '**' vfpdef ','?
+    )
+    ;
+
+vfpdef
+    : name
+    ;
+
+stmt
+    : simple_stmts
+    | compound_stmt
+    ;
+
+simple_stmts
+    : simple_stmt (';' simple_stmt)* ';'? NEWLINE
+    ;
+
+simple_stmt
+    : (
+        expr_stmt
+        | del_stmt
+        | pass_stmt
+        | flow_stmt
+        | import_stmt
+        | global_stmt
+        | nonlocal_stmt
+        | assert_stmt
+    )
+    ;
+
+expr_stmt
+    : testlist_star_expr (
+        annassign
+        | augassign (yield_expr | testlist)
+        | ('=' (yield_expr | testlist_star_expr))*
+    )
+    ;
+
+annassign
+    : ':' test ('=' test)?
+    ;
+
+testlist_star_expr
+    : (test | star_expr) (',' (test | star_expr))* ','?
+    ;
+
+augassign
+    : (
+        '+='
+        | '-='
+        | '*='
+        | '@='
+        | '/='
+        | '%='
+        | '&='
+        | '|='
+        | '^='
+        | '<<='
+        | '>>='
+        | '**='
+        | '//='
+    )
+    ;
+
+// For normal and annotated assignments, additional restrictions enforced by the interpreter
+del_stmt
+    : 'del' exprlist
+    ;
+
+pass_stmt
+    : 'pass'
+    ;
+
+flow_stmt
+    : break_stmt
+    | continue_stmt
+    | return_stmt
+    | raise_stmt
+    | yield_stmt
+    ;
+
+break_stmt
+    : 'break'
+    ;
+
+continue_stmt
+    : 'continue'
+    ;
+
+return_stmt
+    : 'return' testlist?
+    ;
+
+yield_stmt
+    : yield_expr
+    ;
+
+raise_stmt
+    : 'raise' (test ('from' test)?)?
+    ;
+
+import_stmt
+    : import_name
+    | import_from
+    ;
+
+import_name
+    : 'import' dotted_as_names
+    ;
+
+// note below: the ('.' | '...') is necessary because '...' is tokenized as ELLIPSIS
+import_from
+    : (
+        'from' (('.' | '...')* dotted_name | ('.' | '...')+) 'import' (
+            '*'
+            | '(' import_as_names ')'
+            | import_as_names
+        )
+    )
+    ;
+
+import_as_name
+    : name ('as' name)?
+    ;
+
+dotted_as_name
+    : dotted_name ('as' name)?
+    ;
+
+import_as_names
+    : import_as_name (',' import_as_name)* ','?
+    ;
+
+dotted_as_names
+    : dotted_as_name (',' dotted_as_name)*
+    ;
+
+dotted_name
+    : name ('.' name)*
+    ;
+
+global_stmt
+    : 'global' name (',' name)*
+    ;
+
+nonlocal_stmt
+    : 'nonlocal' name (',' name)*
+    ;
+
+assert_stmt
+    : 'assert' test (',' test)?
+    ;
+
+compound_stmt
+    : if_stmt
+    | while_stmt
+    | for_stmt
+    | try_stmt
+    | with_stmt
+    | funcdef
+    | classdef
+    | decorated
+    | async_stmt
+    | match_stmt
+    ;
+
+async_stmt
+    : ASYNC (funcdef | with_stmt | for_stmt)
+    ;
+
+if_stmt
+    : 'if' test ':' block ('elif' test ':' block)* ('else' ':' block)?
+    ;
+
+while_stmt
+    : 'while' test ':' block ('else' ':' block)?
+    ;
+
+for_stmt
+    : 'for' exprlist 'in' testlist ':' block ('else' ':' block)?
+    ;
+
+try_stmt
+    : (
+        'try' ':' block (
+            (except_clause ':' block)+ ('else' ':' block)? ('finally' ':' block)?
+            | 'finally' ':' block
+        )
+    )
+    ;
+
+with_stmt
+    : 'with' with_item (',' with_item)* ':' block
+    ;
+
+with_item
+    : test ('as' expr)?
+    ;
+
+// NB compile.c makes sure that the default except clause is last
+except_clause
+    : 'except' (test ('as' name)?)?
+    ;
+
+block
+    : simple_stmts
+    | NEWLINE INDENT stmt+ DEDENT
+    ;
+
+match_stmt
+    : 'match' subject_expr ':' NEWLINE INDENT case_block+ DEDENT
+    ;
+
+subject_expr
+    : star_named_expression ',' star_named_expressions?
+    | test
+    ;
+
+star_named_expressions
+    : ',' star_named_expression+ ','?
+    ;
+
+star_named_expression
+    : '*' expr
+    | test
+    ;
+
+case_block
+    : 'case' patterns guard? ':' block
+    ;
+
+guard
+    : 'if' test
+    ;
+
+patterns
+    : open_sequence_pattern
+    | pattern
+    ;
+
+pattern
+    : as_pattern
+    | or_pattern
+    ;
+
+as_pattern
+    : or_pattern 'as' pattern_capture_target
+    ;
+
+or_pattern
+    : closed_pattern ('|' closed_pattern)*
+    ;
+
+closed_pattern
+    : literal_pattern
+    | capture_pattern
+    | wildcard_pattern
+    | value_pattern
+    | group_pattern
+    | sequence_pattern
+    | mapping_pattern
+    | class_pattern
+    ;
+
+literal_pattern
+    : signed_number { this.CannotBePlusMinus() }?
+    | complex_number
+    | strings
+    | 'None'
+    | 'True'
+    | 'False'
+    ;
+
+literal_expr
+    : signed_number { this.CannotBePlusMinus() }?
+    | complex_number
+    | strings
+    | 'None'
+    | 'True'
+    | 'False'
+    ;
+
+complex_number
+    : signed_real_number '+' imaginary_number
+    | signed_real_number '-' imaginary_number
+    ;
+
+signed_number
+    : NUMBER
+    | '-' NUMBER
+    ;
+
+signed_real_number
+    : real_number
+    | '-' real_number
+    ;
+
+real_number
+    : NUMBER
+    ;
+
+imaginary_number
+    : NUMBER
+    ;
+
+capture_pattern
+    : pattern_capture_target
+    ;
+
+pattern_capture_target
+    : /* cannot be '_' */ name { this.CannotBeDotLpEq() }?
+    ;
+
+wildcard_pattern
+    : '_'
+    ;
+
+value_pattern
+    : attr { this.CannotBeDotLpEq() }?
+    ;
+
+attr
+    : name ('.' name)+
+    ;
+
+name_or_attr
+    : attr
+    | name
+    ;
+
+group_pattern
+    : '(' pattern ')'
+    ;
+
+sequence_pattern
+    : '[' maybe_sequence_pattern? ']'
+    | '(' open_sequence_pattern? ')'
+    ;
+
+open_sequence_pattern
+    : maybe_star_pattern ',' maybe_sequence_pattern?
+    ;
+
+maybe_sequence_pattern
+    : maybe_star_pattern (',' maybe_star_pattern)* ','?
+    ;
+
+maybe_star_pattern
+    : star_pattern
+    | pattern
+    ;
+
+star_pattern
+    : '*' pattern_capture_target
+    | '*' wildcard_pattern
+    ;
+
+mapping_pattern
+    : '{' '}'
+    | '{' double_star_pattern ','? '}'
+    | '{' items_pattern ',' double_star_pattern ','? '}'
+    | '{' items_pattern ','? '}'
+    ;
+
+items_pattern
+    : key_value_pattern (',' key_value_pattern)*
+    ;
+
+key_value_pattern
+    : (literal_expr | attr) ':' pattern
+    ;
+
+double_star_pattern
+    : '**' pattern_capture_target
+    ;
+
+class_pattern
+    : name_or_attr '(' ')'
+    | name_or_attr '(' positional_patterns ','? ')'
+    | name_or_attr '(' keyword_patterns ','? ')'
+    | name_or_attr '(' positional_patterns ',' keyword_patterns ','? ')'
+    ;
+
+positional_patterns
+    : pattern (',' pattern)*
+    ;
+
+keyword_patterns
+    : keyword_pattern (',' keyword_pattern)*
+    ;
+
+keyword_pattern
+    : name '=' pattern
+    ;
+
+test
+    : or_test ('if' or_test 'else' test)?
+    | lambdef
+    ;
+
+test_nocond
+    : or_test
+    | lambdef_nocond
+    ;
+
+lambdef
+    : 'lambda' varargslist? ':' test
+    ;
+
+lambdef_nocond
+    : 'lambda' varargslist? ':' test_nocond
+    ;
+
+or_test
+    : and_test ('or' and_test)*
+    ;
+
+and_test
+    : not_test ('and' not_test)*
+    ;
+
+not_test
+    : 'not' not_test
+    | comparison
+    ;
+
+comparison
+    : expr (comp_op expr)*
+    ;
+
+// <> isn't actually a valid comparison operator in Python. It's here for the
+// sake of a __future__ import described in PEP 401 (which really works :-)
+comp_op
+    : '<'
+    | '>'
+    | '=='
+    | '>='
+    | '<='
+    | '<>'
+    | '!='
+    | 'in'
+    | 'not' 'in'
+    | 'is'
+    | 'is' 'not'
+    ;
+
+star_expr
+    : '*' expr
+    ;
+
+expr
+    : atom_expr
+    | expr '**' expr
+    | ('+' | '-' | '~')+ expr
+    | expr ('*' | '@' | '/' | '%' | '//') expr
+    | expr ('+' | '-') expr
+    | expr ('<<' | '>>') expr
+    | expr '&' expr
+    | expr '^' expr
+    | expr '|' expr
+    ;
+
+//expr: xor_expr ('|' xor_expr)*;
+//xor_expr: and_expr ('^' and_expr)*;
+//and_expr: shift_expr ('&' shift_expr)*;
+//shift_expr: arith_expr (('<<'|'>>') arith_expr)*;
+//arith_expr: term (('+'|'-') term)*;
+//term: factor (('*'|'@'|'/'|'%'|'//') factor)*;
+//factor: ('+'|'-'|'~') factor | power;
+//power: atom_expr ('**' factor)?;
+atom_expr
+    : AWAIT? atom trailer*
+    ;
+
+atom
+    : '(' (yield_expr | testlist_comp)? ')'
+    | '[' testlist_comp? ']'
+    | '{' dictorsetmaker? '}'
+    | name
+    | NUMBER
+    | STRING+
+    | '...'
+    | 'None'
+    | 'True'
+    | 'False'
+    ;
+
+name
+    : NAME
+    | '_'
+    | 'match'
+    ;
+
+testlist_comp
+    : (test | star_expr) (comp_for | (',' (test | star_expr))* ','?)
+    ;
+
+trailer
+    : '(' arglist? ')'
+    | '[' subscriptlist ']'
+    | '.' name
+    ;
+
+subscriptlist
+    : subscript_ (',' subscript_)* ','?
+    ;
+
+subscript_
+    : test
+    | test? ':' test? sliceop?
+    ;
+
+sliceop
+    : ':' test?
+    ;
+
+exprlist
+    : (expr | star_expr) (',' (expr | star_expr))* ','?
+    ;
+
+testlist
+    : test (',' test)* ','?
+    ;
+
+dictorsetmaker
+    : (
+        ((test ':' test | '**' expr) (comp_for | (',' (test ':' test | '**' expr))* ','?))
+        | ((test | star_expr) (comp_for | (',' (test | star_expr))* ','?))
+    )
+    ;
+
+classdef
+    : 'class' name ('(' arglist? ')')? ':' block
+    ;
+
+arglist
+    : argument (',' argument)* ','?
+    ;
+
+// The reason that keywords are test nodes instead of NAME is that using NAME
+// results in an ambiguity. ast.c makes sure it's a NAME.
+// "test '=' test" is really "keyword '=' test", but we have no such token.
+// These need to be in a single rule to avoid grammar that is ambiguous
+// to our LL(1) parser. Even though 'test' includes '*expr' in star_expr,
+// we explicitly match '*' here, too, to give it proper precedence.
+// Illegal combinations and orderings are blocked in ast.c:
+// multiple (test comp_for) arguments are blocked; keyword unpackings
+// that precede iterable unpackings are blocked; etc.
+argument
+    : (test comp_for? | test '=' test | '**' test | '*' test)
+    ;
+
+comp_iter
+    : comp_for
+    | comp_if
+    ;
+
+comp_for
+    : ASYNC? 'for' exprlist 'in' or_test comp_iter?
+    ;
+
+comp_if
+    : 'if' test_nocond comp_iter?
+    ;
+
+// not used in grammar, but may appear in "node" passed from Parser to Compiler
+encoding_decl
+    : name
+    ;
+
+yield_expr
+    : 'yield' yield_arg?
+    ;
+
+yield_arg
+    : 'from' test
+    | testlist
+    ;
+
+strings
+    : STRING+
+    ;
\ No newline at end of file
diff --git a/LINVAST.Imperative/Builders/Python/ANTLR/Python3Parser.interp b/LINVAST.Imperative/Builders/Python/ANTLR/Python3Parser.interp
new file mode 100644
index 0000000..e6c150f
--- /dev/null
+++ b/LINVAST.Imperative/Builders/Python/ANTLR/Python3Parser.interp
@@ -0,0 +1,334 @@
+token literal names:
+null
+null
+null
+null
+null
+null
+'and'
+'as'
+'assert'
+'async'
+'await'
+'break'
+'case'
+'class'
+'continue'
+'def'
+'del'
+'elif'
+'else'
+'except'
+'False'
+'finally'
+'for'
+'from'
+'global'
+'if'
+'import'
+'in'
+'is'
+'lambda'
+'match'
+'None'
+'nonlocal'
+'not'
+'or'
+'pass'
+'raise'
+'return'
+'True'
+'try'
+'_'
+'while'
+'with'
+'yield'
+null
+null
+null
+null
+null
+null
+null
+null
+null
+null
+'.'
+'...'
+'*'
+'('
+')'
+','
+':'
+';'
+'**'
+'='
+'['
+']'
+'|'
+'^'
+'&'
+'<<'
+'>>'
+'+'
+'-'
+'/'
+'%'
+'//'
+'~'
+'{'
+'}'
+'<'
+'>'
+'=='
+'>='
+'<='
+'<>'
+'!='
+'@'
+'->'
+'+='
+'-='
+'*='
+'@='
+'/='
+'%='
+'&='
+'|='
+'^='
+'<<='
+'>>='
+'**='
+'//='
+null
+null
+
+token symbolic names:
+null
+INDENT
+DEDENT
+STRING
+NUMBER
+INTEGER
+AND
+AS
+ASSERT
+ASYNC
+AWAIT
+BREAK
+CASE
+CLASS
+CONTINUE
+DEF
+DEL
+ELIF
+ELSE
+EXCEPT
+FALSE
+FINALLY
+FOR
+FROM
+GLOBAL
+IF
+IMPORT
+IN
+IS
+LAMBDA
+MATCH
+NONE
+NONLOCAL
+NOT
+OR
+PASS
+RAISE
+RETURN
+TRUE
+TRY
+UNDERSCORE
+WHILE
+WITH
+YIELD
+NEWLINE
+NAME
+STRING_LITERAL
+BYTES_LITERAL
+DECIMAL_INTEGER
+OCT_INTEGER
+HEX_INTEGER
+BIN_INTEGER
+FLOAT_NUMBER
+IMAG_NUMBER
+DOT
+ELLIPSIS
+STAR
+OPEN_PAREN
+CLOSE_PAREN
+COMMA
+COLON
+SEMI_COLON
+POWER
+ASSIGN
+OPEN_BRACK
+CLOSE_BRACK
+OR_OP
+XOR
+AND_OP
+LEFT_SHIFT
+RIGHT_SHIFT
+ADD
+MINUS
+DIV
+MOD
+IDIV
+NOT_OP
+OPEN_BRACE
+CLOSE_BRACE
+LESS_THAN
+GREATER_THAN
+EQUALS
+GT_EQ
+LT_EQ
+NOT_EQ_1
+NOT_EQ_2
+AT
+ARROW
+ADD_ASSIGN
+SUB_ASSIGN
+MULT_ASSIGN
+AT_ASSIGN
+DIV_ASSIGN
+MOD_ASSIGN
+AND_ASSIGN
+OR_ASSIGN
+XOR_ASSIGN
+LEFT_SHIFT_ASSIGN
+RIGHT_SHIFT_ASSIGN
+POWER_ASSIGN
+IDIV_ASSIGN
+SKIP_
+UNKNOWN_CHAR
+
+rule names:
+single_input
+file_input
+eval_input
+decorator
+decorators
+decorated
+async_funcdef
+funcdef
+parameters
+typedargslist
+tfpdef
+varargslist
+vfpdef
+stmt
+simple_stmts
+simple_stmt
+expr_stmt
+annassign
+testlist_star_expr
+augassign
+del_stmt
+pass_stmt
+flow_stmt
+break_stmt
+continue_stmt
+return_stmt
+yield_stmt
+raise_stmt
+import_stmt
+import_name
+import_from
+import_as_name
+dotted_as_name
+import_as_names
+dotted_as_names
+dotted_name
+global_stmt
+nonlocal_stmt
+assert_stmt
+compound_stmt
+async_stmt
+if_stmt
+while_stmt
+for_stmt
+try_stmt
+with_stmt
+with_item
+except_clause
+block
+match_stmt
+subject_expr
+star_named_expressions
+star_named_expression
+case_block
+guard
+patterns
+pattern
+as_pattern
+or_pattern
+closed_pattern
+literal_pattern
+literal_expr
+complex_number
+signed_number
+signed_real_number
+real_number
+imaginary_number
+capture_pattern
+pattern_capture_target
+wildcard_pattern
+value_pattern
+attr
+name_or_attr
+group_pattern
+sequence_pattern
+open_sequence_pattern
+maybe_sequence_pattern
+maybe_star_pattern
+star_pattern
+mapping_pattern
+items_pattern
+key_value_pattern
+double_star_pattern
+class_pattern
+positional_patterns
+keyword_patterns
+keyword_pattern
+test
+test_nocond
+lambdef
+lambdef_nocond
+or_test
+and_test
+not_test
+comparison
+comp_op
+star_expr
+expr
+atom_expr
+atom
+name
+testlist_comp
+trailer
+subscriptlist
+subscript_
+sliceop
+exprlist
+testlist
+dictorsetmaker
+classdef
+arglist
+argument
+comp_iter
+comp_for
+comp_if
+encoding_decl
+yield_expr
+yield_arg
+strings
+
+
+atn:
+[4, 1, 102, 1435, 2, 0, 7, 0, 2, 1, 7, 1, 2, 2, 7, 2, 2, 3, 7, 3, 2, 4, 7, 4, 2, 5, 7, 5, 2, 6, 7, 6, 2, 7, 7, 7, 2, 8, 7, 8, 2, 9, 7, 9, 2, 10, 7, 10, 2, 11, 7, 11, 2, 12, 7, 12, 2, 13, 7, 13, 2, 14, 7, 14, 2, 15, 7, 15, 2, 16, 7, 16, 2, 17, 7, 17, 2, 18, 7, 18, 2, 19, 7, 19, 2, 20, 7, 20, 2, 21, 7, 21, 2, 22, 7, 22, 2, 23, 7, 23, 2, 24, 7, 24, 2, 25, 7, 25, 2, 26, 7, 26, 2, 27, 7, 27, 2, 28, 7, 28, 2, 29, 7, 29, 2, 30, 7, 30, 2, 31, 7, 31, 2, 32, 7, 32, 2, 33, 7, 33, 2, 34, 7, 34, 2, 35, 7, 35, 2, 36, 7, 36, 2, 37, 7, 37, 2, 38, 7, 38, 2, 39, 7, 39, 2, 40, 7, 40, 2, 41, 7, 41, 2, 42, 7, 42, 2, 43, 7, 43, 2, 44, 7, 44, 2, 45, 7, 45, 2, 46, 7, 46, 2, 47, 7, 47, 2, 48, 7, 48, 2, 49, 7, 49, 2, 50, 7, 50, 2, 51, 7, 51, 2, 52, 7, 52, 2, 53, 7, 53, 2, 54, 7, 54, 2, 55, 7, 55, 2, 56, 7, 56, 2, 57, 7, 57, 2, 58, 7, 58, 2, 59, 7, 59, 2, 60, 7, 60, 2, 61, 7, 61, 2, 62, 7, 62, 2, 63, 7, 63, 2, 64, 7, 64, 2, 65, 7, 65, 2, 66, 7, 66, 2, 67, 7, 67, 2, 68, 7, 68, 2, 69, 7, 69, 2, 70, 7, 70, 2, 71, 7, 71, 2, 72, 7, 72, 2, 73, 7, 73, 2, 74, 7, 74, 2, 75, 7, 75, 2, 76, 7, 76, 2, 77, 7, 77, 2, 78, 7, 78, 2, 79, 7, 79, 2, 80, 7, 80, 2, 81, 7, 81, 2, 82, 7, 82, 2, 83, 7, 83, 2, 84, 7, 84, 2, 85, 7, 85, 2, 86, 7, 86, 2, 87, 7, 87, 2, 88, 7, 88, 2, 89, 7, 89, 2, 90, 7, 90, 2, 91, 7, 91, 2, 92, 7, 92, 2, 93, 7, 93, 2, 94, 7, 94, 2, 95, 7, 95, 2, 96, 7, 96, 2, 97, 7, 97, 2, 98, 7, 98, 2, 99, 7, 99, 2, 100, 7, 100, 2, 101, 7, 101, 2, 102, 7, 102, 2, 103, 7, 103, 2, 104, 7, 104, 2, 105, 7, 105, 2, 106, 7, 106, 2, 107, 7, 107, 2, 108, 7, 108, 2, 109, 7, 109, 2, 110, 7, 110, 2, 111, 7, 111, 2, 112, 7, 112, 2, 113, 7, 113, 2, 114, 7, 114, 2, 115, 7, 115, 2, 116, 7, 116, 2, 117, 7, 117, 2, 118, 7, 118, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 3, 0, 244, 8, 0, 1, 1, 1, 1, 5, 1, 248, 8, 1, 10, 1, 12, 1, 251, 9, 1, 1, 1, 1, 1, 1, 2, 1, 2, 5, 2, 257, 8, 2, 10, 2, 12, 2, 260, 9, 2, 1, 2, 1, 2, 1, 3, 1, 3, 1, 3, 1, 3, 3, 3, 268, 8, 3, 1, 3, 3, 3, 271, 8, 3, 1, 3, 1, 3, 1, 4, 4, 4, 276, 8, 4, 11, 4, 12, 4, 277, 1, 5, 1, 5, 1, 5, 1, 5, 3, 5, 284, 8, 5, 1, 6, 1, 6, 1, 6, 1, 7, 1, 7, 1, 7, 1, 7, 1, 7, 3, 7, 294, 8, 7, 1, 7, 1, 7, 1, 7, 1, 8, 1, 8, 3, 8, 301, 8, 8, 1, 8, 1, 8, 1, 9, 1, 9, 1, 9, 3, 9, 308, 8, 9, 1, 9, 1, 9, 1, 9, 1, 9, 3, 9, 314, 8, 9, 5, 9, 316, 8, 9, 10, 9, 12, 9, 319, 9, 9, 1, 9, 1, 9, 1, 9, 3, 9, 324, 8, 9, 1, 9, 1, 9, 1, 9, 1, 9, 3, 9, 330, 8, 9, 5, 9, 332, 8, 9, 10, 9, 12, 9, 335, 9, 9, 1, 9, 1, 9, 1, 9, 1, 9, 3, 9, 341, 8, 9, 3, 9, 343, 8, 9, 3, 9, 345, 8, 9, 1, 9, 1, 9, 1, 9, 3, 9, 350, 8, 9, 3, 9, 352, 8, 9, 3, 9, 354, 8, 9, 1, 9, 1, 9, 3, 9, 358, 8, 9, 1, 9, 1, 9, 1, 9, 1, 9, 3, 9, 364, 8, 9, 5, 9, 366, 8, 9, 10, 9, 12, 9, 369, 9, 9, 1, 9, 1, 9, 1, 9, 1, 9, 3, 9, 375, 8, 9, 3, 9, 377, 8, 9, 3, 9, 379, 8, 9, 1, 9, 1, 9, 1, 9, 3, 9, 384, 8, 9, 3, 9, 386, 8, 9, 1, 10, 1, 10, 1, 10, 3, 10, 391, 8, 10, 1, 11, 1, 11, 1, 11, 3, 11, 396, 8, 11, 1, 11, 1, 11, 1, 11, 1, 11, 3, 11, 402, 8, 11, 5, 11, 404, 8, 11, 10, 11, 12, 11, 407, 9, 11, 1, 11, 1, 11, 1, 11, 3, 11, 412, 8, 11, 1, 11, 1, 11, 1, 11, 1, 11, 3, 11, 418, 8, 11, 5, 11, 420, 8, 11, 10, 11, 12, 11, 423, 9, 11, 1, 11, 1, 11, 1, 11, 1, 11, 3, 11, 429, 8, 11, 3, 11, 431, 8, 11, 3, 11, 433, 8, 11, 1, 11, 1, 11, 1, 11, 3, 11, 438, 8, 11, 3, 11, 440, 8, 11, 3, 11, 442, 8, 11, 1, 11, 1, 11, 3, 11, 446, 8, 11, 1, 11, 1, 11, 1, 11, 1, 11, 3, 11, 452, 8, 11, 5, 11, 454, 8, 11, 10, 11, 12, 11, 457, 9, 11, 1, 11, 1, 11, 1, 11, 1, 11, 3, 11, 463, 8, 11, 3, 11, 465, 8, 11, 3, 11, 467, 8, 11, 1, 11, 1, 11, 1, 11, 3, 11, 472, 8, 11, 3, 11, 474, 8, 11, 1, 12, 1, 12, 1, 13, 1, 13, 3, 13, 480, 8, 13, 1, 14, 1, 14, 1, 14, 5, 14, 485, 8, 14, 10, 14, 12, 14, 488, 9, 14, 1, 14, 3, 14, 491, 8, 14, 1, 14, 1, 14, 1, 15, 1, 15, 1, 15, 1, 15, 1, 15, 1, 15, 1, 15, 1, 15, 3, 15, 503, 8, 15, 1, 16, 1, 16, 1, 16, 1, 16, 1, 16, 3, 16, 510, 8, 16, 1, 16, 1, 16, 1, 16, 3, 16, 515, 8, 16, 5, 16, 517, 8, 16, 10, 16, 12, 16, 520, 9, 16, 3, 16, 522, 8, 16, 1, 17, 1, 17, 1, 17, 1, 17, 3, 17, 528, 8, 17, 1, 18, 1, 18, 3, 18, 532, 8, 18, 1, 18, 1, 18, 1, 18, 3, 18, 537, 8, 18, 5, 18, 539, 8, 18, 10, 18, 12, 18, 542, 9, 18, 1, 18, 3, 18, 545, 8, 18, 1, 19, 1, 19, 1, 20, 1, 20, 1, 20, 1, 21, 1, 21, 1, 22, 1, 22, 1, 22, 1, 22, 1, 22, 3, 22, 559, 8, 22, 1, 23, 1, 23, 1, 24, 1, 24, 1, 25, 1, 25, 3, 25, 567, 8, 25, 1, 26, 1, 26, 1, 27, 1, 27, 1, 27, 1, 27, 3, 27, 575, 8, 27, 3, 27, 577, 8, 27, 1, 28, 1, 28, 3, 28, 581, 8, 28, 1, 29, 1, 29, 1, 29, 1, 30, 1, 30, 5, 30, 588, 8, 30, 10, 30, 12, 30, 591, 9, 30, 1, 30, 1, 30, 4, 30, 595, 8, 30, 11, 30, 12, 30, 596, 3, 30, 599, 8, 30, 1, 30, 1, 30, 1, 30, 1, 30, 1, 30, 1, 30, 1, 30, 3, 30, 608, 8, 30, 1, 31, 1, 31, 1, 31, 3, 31, 613, 8, 31, 1, 32, 1, 32, 1, 32, 3, 32, 618, 8, 32, 1, 33, 1, 33, 1, 33, 5, 33, 623, 8, 33, 10, 33, 12, 33, 626, 9, 33, 1, 33, 3, 33, 629, 8, 33, 1, 34, 1, 34, 1, 34, 5, 34, 634, 8, 34, 10, 34, 12, 34, 637, 9, 34, 1, 35, 1, 35, 1, 35, 5, 35, 642, 8, 35, 10, 35, 12, 35, 645, 9, 35, 1, 36, 1, 36, 1, 36, 1, 36, 5, 36, 651, 8, 36, 10, 36, 12, 36, 654, 9, 36, 1, 37, 1, 37, 1, 37, 1, 37, 5, 37, 660, 8, 37, 10, 37, 12, 37, 663, 9, 37, 1, 38, 1, 38, 1, 38, 1, 38, 3, 38, 669, 8, 38, 1, 39, 1, 39, 1, 39, 1, 39, 1, 39, 1, 39, 1, 39, 1, 39, 1, 39, 1, 39, 3, 39, 681, 8, 39, 1, 40, 1, 40, 1, 40, 1, 40, 3, 40, 687, 8, 40, 1, 41, 1, 41, 1, 41, 1, 41, 1, 41, 1, 41, 1, 41, 1, 41, 1, 41, 5, 41, 698, 8, 41, 10, 41, 12, 41, 701, 9, 41, 1, 41, 1, 41, 1, 41, 3, 41, 706, 8, 41, 1, 42, 1, 42, 1, 42, 1, 42, 1, 42, 1, 42, 1, 42, 3, 42, 715, 8, 42, 1, 43, 1, 43, 1, 43, 1, 43, 1, 43, 1, 43, 1, 43, 1, 43, 1, 43, 3, 43, 726, 8, 43, 1, 44, 1, 44, 1, 44, 1, 44, 1, 44, 1, 44, 1, 44, 4, 44, 735, 8, 44, 11, 44, 12, 44, 736, 1, 44, 1, 44, 1, 44, 3, 44, 742, 8, 44, 1, 44, 1, 44, 1, 44, 3, 44, 747, 8, 44, 1, 44, 1, 44, 1, 44, 3, 44, 752, 8, 44, 1, 45, 1, 45, 1, 45, 1, 45, 5, 45, 758, 8, 45, 10, 45, 12, 45, 761, 9, 45, 1, 45, 1, 45, 1, 45, 1, 46, 1, 46, 1, 46, 3, 46, 769, 8, 46, 1, 47, 1, 47, 1, 47, 1, 47, 3, 47, 775, 8, 47, 3, 47, 777, 8, 47, 1, 48, 1, 48, 1, 48, 1, 48, 4, 48, 783, 8, 48, 11, 48, 12, 48, 784, 1, 48, 1, 48, 3, 48, 789, 8, 48, 1, 49, 1, 49, 1, 49, 1, 49, 1, 49, 1, 49, 4, 49, 797, 8, 49, 11, 49, 12, 49, 798, 1, 49, 1, 49, 1, 50, 1, 50, 1, 50, 3, 50, 806, 8, 50, 1, 50, 3, 50, 809, 8, 50, 1, 51, 1, 51, 4, 51, 813, 8, 51, 11, 51, 12, 51, 814, 1, 51, 3, 51, 818, 8, 51, 1, 52, 1, 52, 1, 52, 3, 52, 823, 8, 52, 1, 53, 1, 53, 1, 53, 3, 53, 828, 8, 53, 1, 53, 1, 53, 1, 53, 1, 54, 1, 54, 1, 54, 1, 55, 1, 55, 3, 55, 838, 8, 55, 1, 56, 1, 56, 3, 56, 842, 8, 56, 1, 57, 1, 57, 1, 57, 1, 57, 1, 58, 1, 58, 1, 58, 5, 58, 851, 8, 58, 10, 58, 12, 58, 854, 9, 58, 1, 59, 1, 59, 1, 59, 1, 59, 1, 59, 1, 59, 1, 59, 1, 59, 3, 59, 864, 8, 59, 1, 60, 1, 60, 1, 60, 1, 60, 1, 60, 1, 60, 1, 60, 1, 60, 3, 60, 874, 8, 60, 1, 61, 1, 61, 1, 61, 1, 61, 1, 61, 1, 61, 1, 61, 1, 61, 3, 61, 884, 8, 61, 1, 62, 1, 62, 1, 62, 1, 62, 1, 62, 1, 62, 1, 62, 1, 62, 3, 62, 894, 8, 62, 1, 63, 1, 63, 1, 63, 3, 63, 899, 8, 63, 1, 64, 1, 64, 1, 64, 3, 64, 904, 8, 64, 1, 65, 1, 65, 1, 66, 1, 66, 1, 67, 1, 67, 1, 68, 1, 68, 1, 68, 1, 69, 1, 69, 1, 70, 1, 70, 1, 70, 1, 71, 1, 71, 1, 71, 4, 71, 923, 8, 71, 11, 71, 12, 71, 924, 1, 72, 1, 72, 3, 72, 929, 8, 72, 1, 73, 1, 73, 1, 73, 1, 73, 1, 74, 1, 74, 3, 74, 937, 8, 74, 1, 74, 1, 74, 1, 74, 3, 74, 942, 8, 74, 1, 74, 3, 74, 945, 8, 74, 1, 75, 1, 75, 1, 75, 3, 75, 950, 8, 75, 1, 76, 1, 76, 1, 76, 5, 76, 955, 8, 76, 10, 76, 12, 76, 958, 9, 76, 1, 76, 3, 76, 961, 8, 76, 1, 77, 1, 77, 3, 77, 965, 8, 77, 1, 78, 1, 78, 1, 78, 1, 78, 3, 78, 971, 8, 78, 1, 79, 1, 79, 1, 79, 1, 79, 1, 79, 3, 79, 978, 8, 79, 1, 79, 1, 79, 1, 79, 1, 79, 1, 79, 1, 79, 1, 79, 3, 79, 987, 8, 79, 1, 79, 1, 79, 1, 79, 1, 79, 1, 79, 3, 79, 994, 8, 79, 1, 79, 1, 79, 3, 79, 998, 8, 79, 1, 80, 1, 80, 1, 80, 5, 80, 1003, 8, 80, 10, 80, 12, 80, 1006, 9, 80, 1, 81, 1, 81, 3, 81, 1010, 8, 81, 1, 81, 1, 81, 1, 81, 1, 82, 1, 82, 1, 82, 1, 83, 1, 83, 1, 83, 1, 83, 1, 83, 1, 83, 1, 83, 1, 83, 3, 83, 1026, 8, 83, 1, 83, 1, 83, 1, 83, 1, 83, 1, 83, 1, 83, 3, 83, 1034, 8, 83, 1, 83, 1, 83, 1, 83, 1, 83, 1, 83, 1, 83, 1, 83, 1, 83, 3, 83, 1044, 8, 83, 1, 83, 1, 83, 3, 83, 1048, 8, 83, 1, 84, 1, 84, 1, 84, 5, 84, 1053, 8, 84, 10, 84, 12, 84, 1056, 9, 84, 1, 85, 1, 85, 1, 85, 5, 85, 1061, 8, 85, 10, 85, 12, 85, 1064, 9, 85, 1, 86, 1, 86, 1, 86, 1, 86, 1, 87, 1, 87, 1, 87, 1, 87, 1, 87, 1, 87, 3, 87, 1076, 8, 87, 1, 87, 3, 87, 1079, 8, 87, 1, 88, 1, 88, 3, 88, 1083, 8, 88, 1, 89, 1, 89, 3, 89, 1087, 8, 89, 1, 89, 1, 89, 1, 89, 1, 90, 1, 90, 3, 90, 1094, 8, 90, 1, 90, 1, 90, 1, 90, 1, 91, 1, 91, 1, 91, 5, 91, 1102, 8, 91, 10, 91, 12, 91, 1105, 9, 91, 1, 92, 1, 92, 1, 92, 5, 92, 1110, 8, 92, 10, 92, 12, 92, 1113, 9, 92, 1, 93, 1, 93, 1, 93, 3, 93, 1118, 8, 93, 1, 94, 1, 94, 1, 94, 1, 94, 5, 94, 1124, 8, 94, 10, 94, 12, 94, 1127, 9, 94, 1, 95, 1, 95, 1, 95, 1, 95, 1, 95, 1, 95, 1, 95, 1, 95, 1, 95, 1, 95, 1, 95, 1, 95, 1, 95, 3, 95, 1142, 8, 95, 1, 96, 1, 96, 1, 96, 1, 97, 1, 97, 1, 97, 4, 97, 1150, 8, 97, 11, 97, 12, 97, 1151, 1, 97, 3, 97, 1155, 8, 97, 1, 97, 1, 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1358, 1344, 1, 0, 0, 0, 1358, 1352, 1, 0, 0, 0, 1359, 1361, 1, 0, 0, 0, 1360, 1318, 1, 0, 0, 0, 1360, 1342, 1, 0, 0, 0, 1361, 217, 1, 0, 0, 0, 1362, 1363, 5, 13, 0, 0, 1363, 1369, 3, 200, 100, 0, 1364, 1366, 5, 57, 0, 0, 1365, 1367, 3, 220, 110, 0, 1366, 1365, 1, 0, 0, 0, 1366, 1367, 1, 0, 0, 0, 1367, 1368, 1, 0, 0, 0, 1368, 1370, 5, 58, 0, 0, 1369, 1364, 1, 0, 0, 0, 1369, 1370, 1, 0, 0, 0, 1370, 1371, 1, 0, 0, 0, 1371, 1372, 5, 60, 0, 0, 1372, 1373, 3, 96, 48, 0, 1373, 219, 1, 0, 0, 0, 1374, 1379, 3, 222, 111, 0, 1375, 1376, 5, 59, 0, 0, 1376, 1378, 3, 222, 111, 0, 1377, 1375, 1, 0, 0, 0, 1378, 1381, 1, 0, 0, 0, 1379, 1377, 1, 0, 0, 0, 1379, 1380, 1, 0, 0, 0, 1380, 1383, 1, 0, 0, 0, 1381, 1379, 1, 0, 0, 0, 1382, 1384, 5, 59, 0, 0, 1383, 1382, 1, 0, 0, 0, 1383, 1384, 1, 0, 0, 0, 1384, 221, 1, 0, 0, 0, 1385, 1387, 3, 174, 87, 0, 1386, 1388, 3, 226, 113, 0, 1387, 1386, 1, 0, 0, 0, 1387, 1388, 1, 0, 0, 0, 1388, 1398, 1, 0, 0, 0, 1389, 1390, 3, 174, 87, 0, 1390, 1391, 5, 63, 0, 0, 1391, 1392, 3, 174, 87, 0, 1392, 1398, 1, 0, 0, 0, 1393, 1394, 5, 62, 0, 0, 1394, 1398, 3, 174, 87, 0, 1395, 1396, 5, 56, 0, 0, 1396, 1398, 3, 174, 87, 0, 1397, 1385, 1, 0, 0, 0, 1397, 1389, 1, 0, 0, 0, 1397, 1393, 1, 0, 0, 0, 1397, 1395, 1, 0, 0, 0, 1398, 223, 1, 0, 0, 0, 1399, 1402, 3, 226, 113, 0, 1400, 1402, 3, 228, 114, 0, 1401, 1399, 1, 0, 0, 0, 1401, 1400, 1, 0, 0, 0, 1402, 225, 1, 0, 0, 0, 1403, 1405, 5, 9, 0, 0, 1404, 1403, 1, 0, 0, 0, 1404, 1405, 1, 0, 0, 0, 1405, 1406, 1, 0, 0, 0, 1406, 1407, 5, 22, 0, 0, 1407, 1408, 3, 212, 106, 0, 1408, 1409, 5, 27, 0, 0, 1409, 1411, 3, 182, 91, 0, 1410, 1412, 3, 224, 112, 0, 1411, 1410, 1, 0, 0, 0, 1411, 1412, 1, 0, 0, 0, 1412, 227, 1, 0, 0, 0, 1413, 1414, 5, 25, 0, 0, 1414, 1416, 3, 176, 88, 0, 1415, 1417, 3, 224, 112, 0, 1416, 1415, 1, 0, 0, 0, 1416, 1417, 1, 0, 0, 0, 1417, 229, 1, 0, 0, 0, 1418, 1419, 3, 200, 100, 0, 1419, 231, 1, 0, 0, 0, 1420, 1422, 5, 43, 0, 0, 1421, 1423, 3, 234, 117, 0, 1422, 1421, 1, 0, 0, 0, 1422, 1423, 1, 0, 0, 0, 1423, 233, 1, 0, 0, 0, 1424, 1425, 5, 23, 0, 0, 1425, 1428, 3, 174, 87, 0, 1426, 1428, 3, 214, 107, 0, 1427, 1424, 1, 0, 0, 0, 1427, 1426, 1, 0, 0, 0, 1428, 235, 1, 0, 0, 0, 1429, 1431, 5, 3, 0, 0, 1430, 1429, 1, 0, 0, 0, 1431, 1432, 1, 0, 0, 0, 1432, 1430, 1, 0, 0, 0, 1432, 1433, 1, 0, 0, 0, 1433, 237, 1, 0, 0, 0, 201, 243, 247, 249, 258, 267, 270, 277, 283, 293, 300, 307, 313, 317, 323, 329, 333, 340, 342, 344, 349, 351, 353, 357, 363, 367, 374, 376, 378, 383, 385, 390, 395, 401, 405, 411, 417, 421, 428, 430, 432, 437, 439, 441, 445, 451, 455, 462, 464, 466, 471, 473, 479, 486, 490, 502, 509, 514, 518, 521, 527, 531, 536, 540, 544, 558, 566, 574, 576, 580, 589, 596, 598, 607, 612, 617, 624, 628, 635, 643, 652, 661, 668, 680, 686, 699, 705, 714, 725, 736, 741, 746, 751, 759, 768, 774, 776, 784, 788, 798, 805, 808, 814, 817, 822, 827, 837, 841, 852, 863, 873, 883, 893, 898, 903, 924, 928, 936, 941, 944, 949, 956, 960, 964, 970, 977, 986, 993, 997, 1004, 1009, 1025, 1033, 1043, 1047, 1054, 1062, 1075, 1078, 1082, 1086, 1093, 1103, 1111, 1117, 1125, 1141, 1151, 1154, 1177, 1179, 1183, 1189, 1195, 1200, 1205, 1213, 1219, 1225, 1231, 1235, 1239, 1241, 1245, 1254, 1261, 1265, 1269, 1273, 1276, 1278, 1282, 1286, 1291, 1295, 1299, 1306, 1310, 1318, 1328, 1332, 1336, 1338, 1342, 1348, 1352, 1356, 1358, 1360, 1366, 1369, 1379, 1383, 1387, 1397, 1401, 1404, 1411, 1416, 1422, 1427, 1432]
\ No newline at end of file
diff --git a/LINVAST.Imperative/Builders/Python/ANTLR/Python3Parser.tokens b/LINVAST.Imperative/Builders/Python/ANTLR/Python3Parser.tokens
new file mode 100644
index 0000000..3e1c535
--- /dev/null
+++ b/LINVAST.Imperative/Builders/Python/ANTLR/Python3Parser.tokens
@@ -0,0 +1,187 @@
+INDENT=1
+DEDENT=2
+STRING=3
+NUMBER=4
+INTEGER=5
+AND=6
+AS=7
+ASSERT=8
+ASYNC=9
+AWAIT=10
+BREAK=11
+CASE=12
+CLASS=13
+CONTINUE=14
+DEF=15
+DEL=16
+ELIF=17
+ELSE=18
+EXCEPT=19
+FALSE=20
+FINALLY=21
+FOR=22
+FROM=23
+GLOBAL=24
+IF=25
+IMPORT=26
+IN=27
+IS=28
+LAMBDA=29
+MATCH=30
+NONE=31
+NONLOCAL=32
+NOT=33
+OR=34
+PASS=35
+RAISE=36
+RETURN=37
+TRUE=38
+TRY=39
+UNDERSCORE=40
+WHILE=41
+WITH=42
+YIELD=43
+NEWLINE=44
+NAME=45
+STRING_LITERAL=46
+BYTES_LITERAL=47
+DECIMAL_INTEGER=48
+OCT_INTEGER=49
+HEX_INTEGER=50
+BIN_INTEGER=51
+FLOAT_NUMBER=52
+IMAG_NUMBER=53
+DOT=54
+ELLIPSIS=55
+STAR=56
+OPEN_PAREN=57
+CLOSE_PAREN=58
+COMMA=59
+COLON=60
+SEMI_COLON=61
+POWER=62
+ASSIGN=63
+OPEN_BRACK=64
+CLOSE_BRACK=65
+OR_OP=66
+XOR=67
+AND_OP=68
+LEFT_SHIFT=69
+RIGHT_SHIFT=70
+ADD=71
+MINUS=72
+DIV=73
+MOD=74
+IDIV=75
+NOT_OP=76
+OPEN_BRACE=77
+CLOSE_BRACE=78
+LESS_THAN=79
+GREATER_THAN=80
+EQUALS=81
+GT_EQ=82
+LT_EQ=83
+NOT_EQ_1=84
+NOT_EQ_2=85
+AT=86
+ARROW=87
+ADD_ASSIGN=88
+SUB_ASSIGN=89
+MULT_ASSIGN=90
+AT_ASSIGN=91
+DIV_ASSIGN=92
+MOD_ASSIGN=93
+AND_ASSIGN=94
+OR_ASSIGN=95
+XOR_ASSIGN=96
+LEFT_SHIFT_ASSIGN=97
+RIGHT_SHIFT_ASSIGN=98
+POWER_ASSIGN=99
+IDIV_ASSIGN=100
+SKIP_=101
+UNKNOWN_CHAR=102
+'and'=6
+'as'=7
+'assert'=8
+'async'=9
+'await'=10
+'break'=11
+'case'=12
+'class'=13
+'continue'=14
+'def'=15
+'del'=16
+'elif'=17
+'else'=18
+'except'=19
+'False'=20
+'finally'=21
+'for'=22
+'from'=23
+'global'=24
+'if'=25
+'import'=26
+'in'=27
+'is'=28
+'lambda'=29
+'match'=30
+'None'=31
+'nonlocal'=32
+'not'=33
+'or'=34
+'pass'=35
+'raise'=36
+'return'=37
+'True'=38
+'try'=39
+'_'=40
+'while'=41
+'with'=42
+'yield'=43
+'.'=54
+'...'=55
+'*'=56
+'('=57
+')'=58
+','=59
+':'=60
+';'=61
+'**'=62
+'='=63
+'['=64
+']'=65
+'|'=66
+'^'=67
+'&'=68
+'<<'=69
+'>>'=70
+'+'=71
+'-'=72
+'/'=73
+'%'=74
+'//'=75
+'~'=76
+'{'=77
+'}'=78
+'<'=79
+'>'=80
+'=='=81
+'>='=82
+'<='=83
+'<>'=84
+'!='=85
+'@'=86
+'->'=87
+'+='=88
+'-='=89
+'*='=90
+'@='=91
+'/='=92
+'%='=93
+'&='=94
+'|='=95
+'^='=96
+'<<='=97
+'>>='=98
+'**='=99
+'//='=100
diff --git a/LINVAST.Imperative/Builders/Python/ANTLR/Python3ParserBase.cs b/LINVAST.Imperative/Builders/Python/ANTLR/Python3ParserBase.cs
new file mode 100644
index 0000000..4855ffb
--- /dev/null
+++ b/LINVAST.Imperative/Builders/Python/ANTLR/Python3ParserBase.cs
@@ -0,0 +1,31 @@
+#nullable disable
+namespace LINVAST.Imperative.Builders.Python {
+using System;
+using System.Collections.Generic;
+using System.IO;
+using Antlr4.Runtime;
+
+public abstract class Python3ParserBase : Parser
+{
+    protected Python3ParserBase(ITokenStream input)
+        : base(input)
+    {
+    }
+
+    protected Python3ParserBase(ITokenStream input, TextWriter output, TextWriter errorOutput)
+        : base(input, output, errorOutput)
+    {
+    }
+
+    public bool CannotBePlusMinus()
+    {
+        return true;
+    }
+
+    public bool CannotBeDotLpEq()
+    {
+        return true;
+    }
+}
+
+}
diff --git a/LINVAST.Imperative/Builders/Python/ANTLR/Python3ParserBaseVisitor.cs b/LINVAST.Imperative/Builders/Python/ANTLR/Python3ParserBaseVisitor.cs
new file mode 100644
index 0000000..37187d9
--- /dev/null
+++ b/LINVAST.Imperative/Builders/Python/ANTLR/Python3ParserBaseVisitor.cs
@@ -0,0 +1,1231 @@
+#nullable disable
+namespace LINVAST.Imperative.Builders.Python {
+//------------------------------------------------------------------------------
+// <auto-generated>
+//     This code was generated by a tool.
+//     ANTLR Version: 4.13.2
+//
+//     Changes to this file may cause incorrect behavior and will be lost if
+//     the code is regenerated.
+// </auto-generated>
+//------------------------------------------------------------------------------
+
+// Generated from Python3Parser.g4 by ANTLR 4.13.2
+
+// Unreachable code detected
+#pragma warning disable 0162
+// The variable '...' is assigned but its value is never used
+#pragma warning disable 0219
+// Missing XML comment for publicly visible type or member '...'
+#pragma warning disable 1591
+// Ambiguous reference in cref attribute
+#pragma warning disable 419
+
+using Antlr4.Runtime.Misc;
+using Antlr4.Runtime.Tree;
+using IToken = Antlr4.Runtime.IToken;
+using ParserRuleContext = Antlr4.Runtime.ParserRuleContext;
+
+/// <summary>
+/// This class provides an empty implementation of <see cref="IPython3ParserVisitor{Result}"/>,
+/// which can be extended to create a visitor which only needs to handle a subset
+/// of the available methods.
+/// </summary>
+/// <typeparam name="Result">The return type of the visit operation.</typeparam>
+[System.CodeDom.Compiler.GeneratedCode("ANTLR", "4.13.2")]
+[System.Diagnostics.DebuggerNonUserCode]
+[System.CLSCompliant(false)]
+public partial class Python3ParserBaseVisitor<Result> : AbstractParseTreeVisitor<Result>, IPython3ParserVisitor<Result> {
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.single_input"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitSingle_input([NotNull] Python3Parser.Single_inputContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.file_input"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitFile_input([NotNull] Python3Parser.File_inputContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.eval_input"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitEval_input([NotNull] Python3Parser.Eval_inputContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.decorator"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitDecorator([NotNull] Python3Parser.DecoratorContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.decorators"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitDecorators([NotNull] Python3Parser.DecoratorsContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.decorated"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitDecorated([NotNull] Python3Parser.DecoratedContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.async_funcdef"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitAsync_funcdef([NotNull] Python3Parser.Async_funcdefContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.funcdef"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitFuncdef([NotNull] Python3Parser.FuncdefContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.parameters"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitParameters([NotNull] Python3Parser.ParametersContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.typedargslist"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitTypedargslist([NotNull] Python3Parser.TypedargslistContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.tfpdef"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitTfpdef([NotNull] Python3Parser.TfpdefContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.varargslist"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitVarargslist([NotNull] Python3Parser.VarargslistContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.vfpdef"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitVfpdef([NotNull] Python3Parser.VfpdefContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.stmt"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitStmt([NotNull] Python3Parser.StmtContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.simple_stmts"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitSimple_stmts([NotNull] Python3Parser.Simple_stmtsContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.simple_stmt"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitSimple_stmt([NotNull] Python3Parser.Simple_stmtContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.expr_stmt"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitExpr_stmt([NotNull] Python3Parser.Expr_stmtContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.annassign"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitAnnassign([NotNull] Python3Parser.AnnassignContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.testlist_star_expr"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitTestlist_star_expr([NotNull] Python3Parser.Testlist_star_exprContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.augassign"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitAugassign([NotNull] Python3Parser.AugassignContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.del_stmt"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitDel_stmt([NotNull] Python3Parser.Del_stmtContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.pass_stmt"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitPass_stmt([NotNull] Python3Parser.Pass_stmtContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.flow_stmt"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitFlow_stmt([NotNull] Python3Parser.Flow_stmtContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.break_stmt"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitBreak_stmt([NotNull] Python3Parser.Break_stmtContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.continue_stmt"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitContinue_stmt([NotNull] Python3Parser.Continue_stmtContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.return_stmt"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitReturn_stmt([NotNull] Python3Parser.Return_stmtContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.yield_stmt"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitYield_stmt([NotNull] Python3Parser.Yield_stmtContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.raise_stmt"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitRaise_stmt([NotNull] Python3Parser.Raise_stmtContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.import_stmt"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitImport_stmt([NotNull] Python3Parser.Import_stmtContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.import_name"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitImport_name([NotNull] Python3Parser.Import_nameContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.import_from"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitImport_from([NotNull] Python3Parser.Import_fromContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.import_as_name"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitImport_as_name([NotNull] Python3Parser.Import_as_nameContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.dotted_as_name"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitDotted_as_name([NotNull] Python3Parser.Dotted_as_nameContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.import_as_names"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitImport_as_names([NotNull] Python3Parser.Import_as_namesContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.dotted_as_names"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitDotted_as_names([NotNull] Python3Parser.Dotted_as_namesContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.dotted_name"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitDotted_name([NotNull] Python3Parser.Dotted_nameContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.global_stmt"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitGlobal_stmt([NotNull] Python3Parser.Global_stmtContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.nonlocal_stmt"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitNonlocal_stmt([NotNull] Python3Parser.Nonlocal_stmtContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.assert_stmt"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitAssert_stmt([NotNull] Python3Parser.Assert_stmtContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.compound_stmt"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitCompound_stmt([NotNull] Python3Parser.Compound_stmtContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.async_stmt"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitAsync_stmt([NotNull] Python3Parser.Async_stmtContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.if_stmt"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitIf_stmt([NotNull] Python3Parser.If_stmtContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.while_stmt"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitWhile_stmt([NotNull] Python3Parser.While_stmtContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.for_stmt"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitFor_stmt([NotNull] Python3Parser.For_stmtContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.try_stmt"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitTry_stmt([NotNull] Python3Parser.Try_stmtContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.with_stmt"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitWith_stmt([NotNull] Python3Parser.With_stmtContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.with_item"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitWith_item([NotNull] Python3Parser.With_itemContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.except_clause"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitExcept_clause([NotNull] Python3Parser.Except_clauseContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.block"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitBlock([NotNull] Python3Parser.BlockContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.match_stmt"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitMatch_stmt([NotNull] Python3Parser.Match_stmtContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.subject_expr"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitSubject_expr([NotNull] Python3Parser.Subject_exprContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.star_named_expressions"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitStar_named_expressions([NotNull] Python3Parser.Star_named_expressionsContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.star_named_expression"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitStar_named_expression([NotNull] Python3Parser.Star_named_expressionContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.case_block"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitCase_block([NotNull] Python3Parser.Case_blockContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.guard"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitGuard([NotNull] Python3Parser.GuardContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.patterns"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitPatterns([NotNull] Python3Parser.PatternsContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.pattern"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitPattern([NotNull] Python3Parser.PatternContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.as_pattern"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitAs_pattern([NotNull] Python3Parser.As_patternContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.or_pattern"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitOr_pattern([NotNull] Python3Parser.Or_patternContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.closed_pattern"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitClosed_pattern([NotNull] Python3Parser.Closed_patternContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.literal_pattern"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitLiteral_pattern([NotNull] Python3Parser.Literal_patternContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.literal_expr"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitLiteral_expr([NotNull] Python3Parser.Literal_exprContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.complex_number"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitComplex_number([NotNull] Python3Parser.Complex_numberContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.signed_number"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitSigned_number([NotNull] Python3Parser.Signed_numberContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.signed_real_number"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitSigned_real_number([NotNull] Python3Parser.Signed_real_numberContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.real_number"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitReal_number([NotNull] Python3Parser.Real_numberContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.imaginary_number"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitImaginary_number([NotNull] Python3Parser.Imaginary_numberContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.capture_pattern"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitCapture_pattern([NotNull] Python3Parser.Capture_patternContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.pattern_capture_target"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitPattern_capture_target([NotNull] Python3Parser.Pattern_capture_targetContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.wildcard_pattern"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitWildcard_pattern([NotNull] Python3Parser.Wildcard_patternContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.value_pattern"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitValue_pattern([NotNull] Python3Parser.Value_patternContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.attr"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitAttr([NotNull] Python3Parser.AttrContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.name_or_attr"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitName_or_attr([NotNull] Python3Parser.Name_or_attrContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.group_pattern"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitGroup_pattern([NotNull] Python3Parser.Group_patternContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.sequence_pattern"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitSequence_pattern([NotNull] Python3Parser.Sequence_patternContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.open_sequence_pattern"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitOpen_sequence_pattern([NotNull] Python3Parser.Open_sequence_patternContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.maybe_sequence_pattern"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitMaybe_sequence_pattern([NotNull] Python3Parser.Maybe_sequence_patternContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.maybe_star_pattern"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitMaybe_star_pattern([NotNull] Python3Parser.Maybe_star_patternContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.star_pattern"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitStar_pattern([NotNull] Python3Parser.Star_patternContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.mapping_pattern"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitMapping_pattern([NotNull] Python3Parser.Mapping_patternContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.items_pattern"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitItems_pattern([NotNull] Python3Parser.Items_patternContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.key_value_pattern"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitKey_value_pattern([NotNull] Python3Parser.Key_value_patternContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.double_star_pattern"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitDouble_star_pattern([NotNull] Python3Parser.Double_star_patternContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.class_pattern"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitClass_pattern([NotNull] Python3Parser.Class_patternContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.positional_patterns"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitPositional_patterns([NotNull] Python3Parser.Positional_patternsContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.keyword_patterns"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitKeyword_patterns([NotNull] Python3Parser.Keyword_patternsContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.keyword_pattern"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitKeyword_pattern([NotNull] Python3Parser.Keyword_patternContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.test"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitTest([NotNull] Python3Parser.TestContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.test_nocond"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitTest_nocond([NotNull] Python3Parser.Test_nocondContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.lambdef"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitLambdef([NotNull] Python3Parser.LambdefContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.lambdef_nocond"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitLambdef_nocond([NotNull] Python3Parser.Lambdef_nocondContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.or_test"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitOr_test([NotNull] Python3Parser.Or_testContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.and_test"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitAnd_test([NotNull] Python3Parser.And_testContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.not_test"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitNot_test([NotNull] Python3Parser.Not_testContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.comparison"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitComparison([NotNull] Python3Parser.ComparisonContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.comp_op"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitComp_op([NotNull] Python3Parser.Comp_opContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.star_expr"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitStar_expr([NotNull] Python3Parser.Star_exprContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.expr"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitExpr([NotNull] Python3Parser.ExprContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.atom_expr"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitAtom_expr([NotNull] Python3Parser.Atom_exprContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.atom"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitAtom([NotNull] Python3Parser.AtomContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.name"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitName([NotNull] Python3Parser.NameContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.testlist_comp"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitTestlist_comp([NotNull] Python3Parser.Testlist_compContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.trailer"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitTrailer([NotNull] Python3Parser.TrailerContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.subscriptlist"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitSubscriptlist([NotNull] Python3Parser.SubscriptlistContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.subscript_"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitSubscript_([NotNull] Python3Parser.Subscript_Context context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.sliceop"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitSliceop([NotNull] Python3Parser.SliceopContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.exprlist"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitExprlist([NotNull] Python3Parser.ExprlistContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.testlist"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitTestlist([NotNull] Python3Parser.TestlistContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.dictorsetmaker"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitDictorsetmaker([NotNull] Python3Parser.DictorsetmakerContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.classdef"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitClassdef([NotNull] Python3Parser.ClassdefContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.arglist"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitArglist([NotNull] Python3Parser.ArglistContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.argument"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitArgument([NotNull] Python3Parser.ArgumentContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.comp_iter"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitComp_iter([NotNull] Python3Parser.Comp_iterContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.comp_for"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitComp_for([NotNull] Python3Parser.Comp_forContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.comp_if"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitComp_if([NotNull] Python3Parser.Comp_ifContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.encoding_decl"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitEncoding_decl([NotNull] Python3Parser.Encoding_declContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.yield_expr"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitYield_expr([NotNull] Python3Parser.Yield_exprContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.yield_arg"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitYield_arg([NotNull] Python3Parser.Yield_argContext context) { return VisitChildren(context); }
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.strings"/>.
+	/// <para>
+	/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
+	/// on <paramref name="context"/>.
+	/// </para>
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	public virtual Result VisitStrings([NotNull] Python3Parser.StringsContext context) { return VisitChildren(context); }
+}
+
+}
diff --git a/LINVAST.Imperative/Builders/Python/ANTLR/Python3ParserVisitor.cs b/LINVAST.Imperative/Builders/Python/ANTLR/Python3ParserVisitor.cs
new file mode 100644
index 0000000..1c83bcc
--- /dev/null
+++ b/LINVAST.Imperative/Builders/Python/ANTLR/Python3ParserVisitor.cs
@@ -0,0 +1,752 @@
+#nullable disable
+namespace LINVAST.Imperative.Builders.Python {
+//------------------------------------------------------------------------------
+// <auto-generated>
+//     This code was generated by a tool.
+//     ANTLR Version: 4.13.2
+//
+//     Changes to this file may cause incorrect behavior and will be lost if
+//     the code is regenerated.
+// </auto-generated>
+//------------------------------------------------------------------------------
+
+// Generated from Python3Parser.g4 by ANTLR 4.13.2
+
+// Unreachable code detected
+#pragma warning disable 0162
+// The variable '...' is assigned but its value is never used
+#pragma warning disable 0219
+// Missing XML comment for publicly visible type or member '...'
+#pragma warning disable 1591
+// Ambiguous reference in cref attribute
+#pragma warning disable 419
+
+using Antlr4.Runtime.Misc;
+using Antlr4.Runtime.Tree;
+using IToken = Antlr4.Runtime.IToken;
+
+/// <summary>
+/// This interface defines a complete generic visitor for a parse tree produced
+/// by <see cref="Python3Parser"/>.
+/// </summary>
+/// <typeparam name="Result">The return type of the visit operation.</typeparam>
+[System.CodeDom.Compiler.GeneratedCode("ANTLR", "4.13.2")]
+[System.CLSCompliant(false)]
+public interface IPython3ParserVisitor<Result> : IParseTreeVisitor<Result> {
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.single_input"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitSingle_input([NotNull] Python3Parser.Single_inputContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.file_input"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitFile_input([NotNull] Python3Parser.File_inputContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.eval_input"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitEval_input([NotNull] Python3Parser.Eval_inputContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.decorator"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitDecorator([NotNull] Python3Parser.DecoratorContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.decorators"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitDecorators([NotNull] Python3Parser.DecoratorsContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.decorated"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitDecorated([NotNull] Python3Parser.DecoratedContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.async_funcdef"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitAsync_funcdef([NotNull] Python3Parser.Async_funcdefContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.funcdef"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitFuncdef([NotNull] Python3Parser.FuncdefContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.parameters"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitParameters([NotNull] Python3Parser.ParametersContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.typedargslist"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitTypedargslist([NotNull] Python3Parser.TypedargslistContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.tfpdef"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitTfpdef([NotNull] Python3Parser.TfpdefContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.varargslist"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitVarargslist([NotNull] Python3Parser.VarargslistContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.vfpdef"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitVfpdef([NotNull] Python3Parser.VfpdefContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.stmt"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitStmt([NotNull] Python3Parser.StmtContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.simple_stmts"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitSimple_stmts([NotNull] Python3Parser.Simple_stmtsContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.simple_stmt"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitSimple_stmt([NotNull] Python3Parser.Simple_stmtContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.expr_stmt"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitExpr_stmt([NotNull] Python3Parser.Expr_stmtContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.annassign"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitAnnassign([NotNull] Python3Parser.AnnassignContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.testlist_star_expr"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitTestlist_star_expr([NotNull] Python3Parser.Testlist_star_exprContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.augassign"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitAugassign([NotNull] Python3Parser.AugassignContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.del_stmt"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitDel_stmt([NotNull] Python3Parser.Del_stmtContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.pass_stmt"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitPass_stmt([NotNull] Python3Parser.Pass_stmtContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.flow_stmt"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitFlow_stmt([NotNull] Python3Parser.Flow_stmtContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.break_stmt"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitBreak_stmt([NotNull] Python3Parser.Break_stmtContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.continue_stmt"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitContinue_stmt([NotNull] Python3Parser.Continue_stmtContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.return_stmt"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitReturn_stmt([NotNull] Python3Parser.Return_stmtContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.yield_stmt"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitYield_stmt([NotNull] Python3Parser.Yield_stmtContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.raise_stmt"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitRaise_stmt([NotNull] Python3Parser.Raise_stmtContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.import_stmt"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitImport_stmt([NotNull] Python3Parser.Import_stmtContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.import_name"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitImport_name([NotNull] Python3Parser.Import_nameContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.import_from"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitImport_from([NotNull] Python3Parser.Import_fromContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.import_as_name"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitImport_as_name([NotNull] Python3Parser.Import_as_nameContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.dotted_as_name"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitDotted_as_name([NotNull] Python3Parser.Dotted_as_nameContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.import_as_names"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitImport_as_names([NotNull] Python3Parser.Import_as_namesContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.dotted_as_names"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitDotted_as_names([NotNull] Python3Parser.Dotted_as_namesContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.dotted_name"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitDotted_name([NotNull] Python3Parser.Dotted_nameContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.global_stmt"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitGlobal_stmt([NotNull] Python3Parser.Global_stmtContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.nonlocal_stmt"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitNonlocal_stmt([NotNull] Python3Parser.Nonlocal_stmtContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.assert_stmt"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitAssert_stmt([NotNull] Python3Parser.Assert_stmtContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.compound_stmt"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitCompound_stmt([NotNull] Python3Parser.Compound_stmtContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.async_stmt"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitAsync_stmt([NotNull] Python3Parser.Async_stmtContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.if_stmt"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitIf_stmt([NotNull] Python3Parser.If_stmtContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.while_stmt"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitWhile_stmt([NotNull] Python3Parser.While_stmtContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.for_stmt"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitFor_stmt([NotNull] Python3Parser.For_stmtContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.try_stmt"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitTry_stmt([NotNull] Python3Parser.Try_stmtContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.with_stmt"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitWith_stmt([NotNull] Python3Parser.With_stmtContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.with_item"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitWith_item([NotNull] Python3Parser.With_itemContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.except_clause"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitExcept_clause([NotNull] Python3Parser.Except_clauseContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.block"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitBlock([NotNull] Python3Parser.BlockContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.match_stmt"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitMatch_stmt([NotNull] Python3Parser.Match_stmtContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.subject_expr"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitSubject_expr([NotNull] Python3Parser.Subject_exprContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.star_named_expressions"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitStar_named_expressions([NotNull] Python3Parser.Star_named_expressionsContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.star_named_expression"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitStar_named_expression([NotNull] Python3Parser.Star_named_expressionContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.case_block"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitCase_block([NotNull] Python3Parser.Case_blockContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.guard"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitGuard([NotNull] Python3Parser.GuardContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.patterns"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitPatterns([NotNull] Python3Parser.PatternsContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.pattern"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitPattern([NotNull] Python3Parser.PatternContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.as_pattern"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitAs_pattern([NotNull] Python3Parser.As_patternContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.or_pattern"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitOr_pattern([NotNull] Python3Parser.Or_patternContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.closed_pattern"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitClosed_pattern([NotNull] Python3Parser.Closed_patternContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.literal_pattern"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitLiteral_pattern([NotNull] Python3Parser.Literal_patternContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.literal_expr"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitLiteral_expr([NotNull] Python3Parser.Literal_exprContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.complex_number"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitComplex_number([NotNull] Python3Parser.Complex_numberContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.signed_number"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitSigned_number([NotNull] Python3Parser.Signed_numberContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.signed_real_number"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitSigned_real_number([NotNull] Python3Parser.Signed_real_numberContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.real_number"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitReal_number([NotNull] Python3Parser.Real_numberContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.imaginary_number"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitImaginary_number([NotNull] Python3Parser.Imaginary_numberContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.capture_pattern"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitCapture_pattern([NotNull] Python3Parser.Capture_patternContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.pattern_capture_target"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitPattern_capture_target([NotNull] Python3Parser.Pattern_capture_targetContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.wildcard_pattern"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitWildcard_pattern([NotNull] Python3Parser.Wildcard_patternContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.value_pattern"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitValue_pattern([NotNull] Python3Parser.Value_patternContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.attr"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitAttr([NotNull] Python3Parser.AttrContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.name_or_attr"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitName_or_attr([NotNull] Python3Parser.Name_or_attrContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.group_pattern"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitGroup_pattern([NotNull] Python3Parser.Group_patternContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.sequence_pattern"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitSequence_pattern([NotNull] Python3Parser.Sequence_patternContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.open_sequence_pattern"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitOpen_sequence_pattern([NotNull] Python3Parser.Open_sequence_patternContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.maybe_sequence_pattern"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitMaybe_sequence_pattern([NotNull] Python3Parser.Maybe_sequence_patternContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.maybe_star_pattern"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitMaybe_star_pattern([NotNull] Python3Parser.Maybe_star_patternContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.star_pattern"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitStar_pattern([NotNull] Python3Parser.Star_patternContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.mapping_pattern"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitMapping_pattern([NotNull] Python3Parser.Mapping_patternContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.items_pattern"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitItems_pattern([NotNull] Python3Parser.Items_patternContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.key_value_pattern"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitKey_value_pattern([NotNull] Python3Parser.Key_value_patternContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.double_star_pattern"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitDouble_star_pattern([NotNull] Python3Parser.Double_star_patternContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.class_pattern"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitClass_pattern([NotNull] Python3Parser.Class_patternContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.positional_patterns"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitPositional_patterns([NotNull] Python3Parser.Positional_patternsContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.keyword_patterns"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitKeyword_patterns([NotNull] Python3Parser.Keyword_patternsContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.keyword_pattern"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitKeyword_pattern([NotNull] Python3Parser.Keyword_patternContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.test"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitTest([NotNull] Python3Parser.TestContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.test_nocond"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitTest_nocond([NotNull] Python3Parser.Test_nocondContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.lambdef"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitLambdef([NotNull] Python3Parser.LambdefContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.lambdef_nocond"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitLambdef_nocond([NotNull] Python3Parser.Lambdef_nocondContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.or_test"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitOr_test([NotNull] Python3Parser.Or_testContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.and_test"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitAnd_test([NotNull] Python3Parser.And_testContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.not_test"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitNot_test([NotNull] Python3Parser.Not_testContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.comparison"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitComparison([NotNull] Python3Parser.ComparisonContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.comp_op"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitComp_op([NotNull] Python3Parser.Comp_opContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.star_expr"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitStar_expr([NotNull] Python3Parser.Star_exprContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.expr"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitExpr([NotNull] Python3Parser.ExprContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.atom_expr"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitAtom_expr([NotNull] Python3Parser.Atom_exprContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.atom"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitAtom([NotNull] Python3Parser.AtomContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.name"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitName([NotNull] Python3Parser.NameContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.testlist_comp"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitTestlist_comp([NotNull] Python3Parser.Testlist_compContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.trailer"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitTrailer([NotNull] Python3Parser.TrailerContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.subscriptlist"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitSubscriptlist([NotNull] Python3Parser.SubscriptlistContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.subscript_"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitSubscript_([NotNull] Python3Parser.Subscript_Context context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.sliceop"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitSliceop([NotNull] Python3Parser.SliceopContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.exprlist"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitExprlist([NotNull] Python3Parser.ExprlistContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.testlist"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitTestlist([NotNull] Python3Parser.TestlistContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.dictorsetmaker"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitDictorsetmaker([NotNull] Python3Parser.DictorsetmakerContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.classdef"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitClassdef([NotNull] Python3Parser.ClassdefContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.arglist"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitArglist([NotNull] Python3Parser.ArglistContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.argument"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitArgument([NotNull] Python3Parser.ArgumentContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.comp_iter"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitComp_iter([NotNull] Python3Parser.Comp_iterContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.comp_for"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitComp_for([NotNull] Python3Parser.Comp_forContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.comp_if"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitComp_if([NotNull] Python3Parser.Comp_ifContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.encoding_decl"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitEncoding_decl([NotNull] Python3Parser.Encoding_declContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.yield_expr"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitYield_expr([NotNull] Python3Parser.Yield_exprContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.yield_arg"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitYield_arg([NotNull] Python3Parser.Yield_argContext context);
+	/// <summary>
+	/// Visit a parse tree produced by <see cref="Python3Parser.strings"/>.
+	/// </summary>
+	/// <param name="context">The parse tree.</param>
+	/// <return>The visitor result.</return>
+	Result VisitStrings([NotNull] Python3Parser.StringsContext context);
+}
+
+}
diff --git a/LINVAST.Imperative/Builders/Python/PythonASTBuilder.Declarations.cs b/LINVAST.Imperative/Builders/Python/PythonASTBuilder.Declarations.cs
new file mode 100644
index 0000000..b455271
--- /dev/null
+++ b/LINVAST.Imperative/Builders/Python/PythonASTBuilder.Declarations.cs
@@ -0,0 +1,66 @@
+using System;
+using LINVAST.Builders;
+using LINVAST.Imperative.Nodes;
+using LINVAST.Nodes;
+
+namespace LINVAST.Imperative.Builders.Python
+{
+    public sealed partial class PythonASTBuilder : Python3ParserBaseVisitor<ASTNode>, IASTBuilder<Python3Parser>
+    {
+        // import_stmt: import_name | import_from
+        public override ASTNode VisitImport_stmt(Python3Parser.Import_stmtContext ctx) =>
+            throw new NotImplementedException("import_stmt");
+
+        // import_name: 'import' dotted_as_names
+        public override ASTNode VisitImport_name(Python3Parser.Import_nameContext ctx) =>
+            throw new NotImplementedException("import_name");
+
+        // import_from: 'from' ... 'import' ...
+        public override ASTNode VisitImport_from(Python3Parser.Import_fromContext ctx) =>
+            throw new NotImplementedException("import_from");
+
+        // import_as_name: name ('as' name)?
+        public override ASTNode VisitImport_as_name(Python3Parser.Import_as_nameContext ctx) =>
+            throw new NotImplementedException("import_as_name");
+
+        // dotted_as_name: dotted_name ('as' name)?
+        public override ASTNode VisitDotted_as_name(Python3Parser.Dotted_as_nameContext ctx) =>
+            throw new NotImplementedException("dotted_as_name");
+
+        // import_as_names: import_as_name (',' import_as_name)* ','?
+        public override ASTNode VisitImport_as_names(Python3Parser.Import_as_namesContext ctx) =>
+            throw new NotImplementedException("import_as_names");
+
+        // dotted_as_names: dotted_as_name (',' dotted_as_name)*
+        public override ASTNode VisitDotted_as_names(Python3Parser.Dotted_as_namesContext ctx) =>
+            throw new NotImplementedException("dotted_as_names");
+
+        // dotted_name: name ('.' name)*
+        public override ASTNode VisitDotted_name(Python3Parser.Dotted_nameContext ctx) =>
+            throw new NotImplementedException("dotted_name");
+
+        // expr_stmt: testlist_star_expr (annassign | augassign ... | ('=' ...)*)
+        public override ASTNode VisitExpr_stmt(Python3Parser.Expr_stmtContext ctx) =>
+            throw new NotImplementedException("expr_stmt");
+
+        // annassign: ':' test ('=' test)?
+        public override ASTNode VisitAnnassign(Python3Parser.AnnassignContext ctx) =>
+            throw new NotImplementedException("annassign");
+
+        // augassign: '+=' | '-=' | '*=' | ...
+        public override ASTNode VisitAugassign(Python3Parser.AugassignContext ctx) =>
+            throw new NotImplementedException("augassign");
+
+        // del_stmt: 'del' exprlist
+        public override ASTNode VisitDel_stmt(Python3Parser.Del_stmtContext ctx) =>
+            throw new NotImplementedException("del_stmt");
+
+        // global_stmt: 'global' name (',' name)*
+        public override ASTNode VisitGlobal_stmt(Python3Parser.Global_stmtContext ctx) =>
+            throw new NotImplementedException("global_stmt");
+
+        // nonlocal_stmt: 'nonlocal' name (',' name)*
+        public override ASTNode VisitNonlocal_stmt(Python3Parser.Nonlocal_stmtContext ctx) =>
+            throw new NotImplementedException("nonlocal_stmt");
+    }
+}
diff --git a/LINVAST.Imperative/Builders/Python/PythonASTBuilder.Expressions.cs b/LINVAST.Imperative/Builders/Python/PythonASTBuilder.Expressions.cs
new file mode 100644
index 0000000..5cc13f1
--- /dev/null
+++ b/LINVAST.Imperative/Builders/Python/PythonASTBuilder.Expressions.cs
@@ -0,0 +1,126 @@
+using System;
+using LINVAST.Builders;
+using LINVAST.Imperative.Nodes;
+using LINVAST.Nodes;
+
+namespace LINVAST.Imperative.Builders.Python
+{
+    public sealed partial class PythonASTBuilder : Python3ParserBaseVisitor<ASTNode>, IASTBuilder<Python3Parser>
+    {
+        // test: or_test ('if' or_test 'else' test)? | lambdef
+        public override ASTNode VisitTest(Python3Parser.TestContext ctx) =>
+            throw new NotImplementedException("test");
+
+        // test_nocond: or_test | lambdef_nocond
+        public override ASTNode VisitTest_nocond(Python3Parser.Test_nocondContext ctx) =>
+            throw new NotImplementedException("test_nocond");
+
+        // or_test: and_test ('or' and_test)*
+        public override ASTNode VisitOr_test(Python3Parser.Or_testContext ctx) =>
+            throw new NotImplementedException("or_test");
+
+        // and_test: not_test ('and' not_test)*
+        public override ASTNode VisitAnd_test(Python3Parser.And_testContext ctx) =>
+            throw new NotImplementedException("and_test");
+
+        // not_test: 'not' not_test | comparison
+        public override ASTNode VisitNot_test(Python3Parser.Not_testContext ctx) =>
+            throw new NotImplementedException("not_test");
+
+        // comparison: expr (comp_op expr)*
+        public override ASTNode VisitComparison(Python3Parser.ComparisonContext ctx) =>
+            throw new NotImplementedException("comparison");
+
+        // comp_op: '<' | '>' | '==' | '>=' | '<=' | '!=' | 'in' | 'not' 'in' | 'is' | 'is' 'not'
+        public override ASTNode VisitComp_op(Python3Parser.Comp_opContext ctx) =>
+            throw new NotImplementedException("comp_op");
+
+        // expr: atom_expr | expr op expr | unary expr
+        public override ASTNode VisitExpr(Python3Parser.ExprContext ctx) =>
+            throw new NotImplementedException("expr");
+
+        // star_expr: '*' expr
+        public override ASTNode VisitStar_expr(Python3Parser.Star_exprContext ctx) =>
+            throw new NotImplementedException("star_expr");
+
+        // atom_expr: AWAIT? atom trailer*
+        public override ASTNode VisitAtom_expr(Python3Parser.Atom_exprContext ctx) =>
+            throw new NotImplementedException("atom_expr");
+
+        // atom: '(' ... ')' | '[' ... ']' | '{' ... '}' | name | NUMBER | STRING+ | '...' | 'None' | 'True' | 'False'
+        public override ASTNode VisitAtom(Python3Parser.AtomContext ctx) =>
+            throw new NotImplementedException("atom");
+
+        // name: NAME | '_' | 'match'
+        public override ASTNode VisitName(Python3Parser.NameContext ctx) =>
+            throw new NotImplementedException("name");
+
+        // trailer: '(' arglist? ')' | '[' subscriptlist ']' | '.' name
+        public override ASTNode VisitTrailer(Python3Parser.TrailerContext ctx) =>
+            throw new NotImplementedException("trailer");
+
+        // subscriptlist: subscript_ (',' subscript_)* ','?
+        public override ASTNode VisitSubscriptlist(Python3Parser.SubscriptlistContext ctx) =>
+            throw new NotImplementedException("subscriptlist");
+
+        // subscript_: test | test? ':' test? sliceop?
+        public override ASTNode VisitSubscript_(Python3Parser.Subscript_Context ctx) =>
+            throw new NotImplementedException("subscript_");
+
+        // sliceop: ':' test?
+        public override ASTNode VisitSliceop(Python3Parser.SliceopContext ctx) =>
+            throw new NotImplementedException("sliceop");
+
+        // testlist_star_expr: (test | star_expr) (',' (test | star_expr))* ','?
+        public override ASTNode VisitTestlist_star_expr(Python3Parser.Testlist_star_exprContext ctx) =>
+            throw new NotImplementedException("testlist_star_expr");
+
+        // testlist: test (',' test)* ','?
+        public override ASTNode VisitTestlist(Python3Parser.TestlistContext ctx) =>
+            throw new NotImplementedException("testlist");
+
+        // exprlist: (expr | star_expr) (',' (expr | star_expr))* ','?
+        public override ASTNode VisitExprlist(Python3Parser.ExprlistContext ctx) =>
+            throw new NotImplementedException("exprlist");
+
+        // testlist_comp: (test | star_expr) (comp_for | (',' (test | star_expr))* ','?)
+        public override ASTNode VisitTestlist_comp(Python3Parser.Testlist_compContext ctx) =>
+            throw new NotImplementedException("testlist_comp");
+
+        // dictorsetmaker: ...
+        public override ASTNode VisitDictorsetmaker(Python3Parser.DictorsetmakerContext ctx) =>
+            throw new NotImplementedException("dictorsetmaker");
+
+        // arglist: argument (',' argument)* ','?
+        public override ASTNode VisitArglist(Python3Parser.ArglistContext ctx) =>
+            throw new NotImplementedException("arglist");
+
+        // argument: test comp_for? | test '=' test | '**' test | '*' test
+        public override ASTNode VisitArgument(Python3Parser.ArgumentContext ctx) =>
+            throw new NotImplementedException("argument");
+
+        // comp_iter: comp_for | comp_if
+        public override ASTNode VisitComp_iter(Python3Parser.Comp_iterContext ctx) =>
+            throw new NotImplementedException("comp_iter");
+
+        // comp_for: ASYNC? 'for' exprlist 'in' or_test comp_iter?
+        public override ASTNode VisitComp_for(Python3Parser.Comp_forContext ctx) =>
+            throw new NotImplementedException("comp_for");
+
+        // comp_if: 'if' test_nocond comp_iter?
+        public override ASTNode VisitComp_if(Python3Parser.Comp_ifContext ctx) =>
+            throw new NotImplementedException("comp_if");
+
+        // yield_expr: 'yield' yield_arg?
+        public override ASTNode VisitYield_expr(Python3Parser.Yield_exprContext ctx) =>
+            throw new NotImplementedException("yield_expr");
+
+        // yield_arg: 'from' test | testlist
+        public override ASTNode VisitYield_arg(Python3Parser.Yield_argContext ctx) =>
+            throw new NotImplementedException("yield_arg");
+
+        // strings: STRING+
+        public override ASTNode VisitStrings(Python3Parser.StringsContext ctx) =>
+            throw new NotImplementedException("strings");
+    }
+}
diff --git a/LINVAST.Imperative/Builders/Python/PythonASTBuilder.Functions.cs b/LINVAST.Imperative/Builders/Python/PythonASTBuilder.Functions.cs
new file mode 100644
index 0000000..3df8a9d
--- /dev/null
+++ b/LINVAST.Imperative/Builders/Python/PythonASTBuilder.Functions.cs
@@ -0,0 +1,58 @@
+using System;
+using LINVAST.Builders;
+using LINVAST.Imperative.Nodes;
+using LINVAST.Nodes;
+
+namespace LINVAST.Imperative.Builders.Python
+{
+    public sealed partial class PythonASTBuilder : Python3ParserBaseVisitor<ASTNode>, IASTBuilder<Python3Parser>
+    {
+        // funcdef: 'def' name parameters ('->' test)? ':' block
+        public override ASTNode VisitFuncdef(Python3Parser.FuncdefContext ctx) =>
+            throw new NotImplementedException("funcdef");
+
+        // async_funcdef: ASYNC funcdef
+        public override ASTNode VisitAsync_funcdef(Python3Parser.Async_funcdefContext ctx) =>
+            throw new NotImplementedException("async_funcdef");
+
+        // parameters: '(' typedargslist? ')'
+        public override ASTNode VisitParameters(Python3Parser.ParametersContext ctx) =>
+            throw new NotImplementedException("parameters");
+
+        // typedargslist: tfpdef ('=' test)? ... | '*' tfpdef? ... | '**' tfpdef
+        public override ASTNode VisitTypedargslist(Python3Parser.TypedargslistContext ctx) =>
+            throw new NotImplementedException("typedargslist");
+
+        // tfpdef: name (':' test)?
+        public override ASTNode VisitTfpdef(Python3Parser.TfpdefContext ctx) =>
+            throw new NotImplementedException("tfpdef");
+
+        // varargslist: vfpdef ('=' test)? ... | '*' vfpdef? ... | '**' vfpdef
+        public override ASTNode VisitVarargslist(Python3Parser.VarargslistContext ctx) =>
+            throw new NotImplementedException("varargslist");
+
+        // vfpdef: name
+        public override ASTNode VisitVfpdef(Python3Parser.VfpdefContext ctx) =>
+            throw new NotImplementedException("vfpdef");
+
+        // lambdef: 'lambda' varargslist? ':' test
+        public override ASTNode VisitLambdef(Python3Parser.LambdefContext ctx) =>
+            throw new NotImplementedException("lambdef");
+
+        // lambdef_nocond: 'lambda' varargslist? ':' test_nocond
+        public override ASTNode VisitLambdef_nocond(Python3Parser.Lambdef_nocondContext ctx) =>
+            throw new NotImplementedException("lambdef_nocond");
+
+        // decorator: '@' dotted_name ('(' arglist? ')')? NEWLINE
+        public override ASTNode VisitDecorator(Python3Parser.DecoratorContext ctx) =>
+            throw new NotImplementedException("decorator");
+
+        // decorators: decorator+
+        public override ASTNode VisitDecorators(Python3Parser.DecoratorsContext ctx) =>
+            throw new NotImplementedException("decorators");
+
+        // decorated: decorators (classdef | funcdef | async_funcdef)
+        public override ASTNode VisitDecorated(Python3Parser.DecoratedContext ctx) =>
+            throw new NotImplementedException("decorated");
+    }
+}
diff --git a/LINVAST.Imperative/Builders/Python/PythonASTBuilder.Statements.cs b/LINVAST.Imperative/Builders/Python/PythonASTBuilder.Statements.cs
new file mode 100644
index 0000000..f923483
--- /dev/null
+++ b/LINVAST.Imperative/Builders/Python/PythonASTBuilder.Statements.cs
@@ -0,0 +1,234 @@
+using System;
+using LINVAST.Builders;
+using LINVAST.Imperative.Nodes;
+using LINVAST.Nodes;
+
+namespace LINVAST.Imperative.Builders.Python
+{
+    public sealed partial class PythonASTBuilder : Python3ParserBaseVisitor<ASTNode>, IASTBuilder<Python3Parser>
+    {
+        // compound_stmt: if_stmt | while_stmt | for_stmt | try_stmt | with_stmt | funcdef | classdef | decorated | async_stmt | match_stmt
+        public override ASTNode VisitCompound_stmt(Python3Parser.Compound_stmtContext ctx) =>
+            throw new NotImplementedException("compound_stmt");
+
+        // block: simple_stmts | NEWLINE INDENT stmt+ DEDENT
+        public override ASTNode VisitBlock(Python3Parser.BlockContext ctx) =>
+            throw new NotImplementedException("block");
+
+        // if_stmt: 'if' test ':' block ('elif' test ':' block)* ('else' ':' block)?
+        public override ASTNode VisitIf_stmt(Python3Parser.If_stmtContext ctx) =>
+            throw new NotImplementedException("if_stmt");
+
+        // while_stmt: 'while' test ':' block ('else' ':' block)?
+        public override ASTNode VisitWhile_stmt(Python3Parser.While_stmtContext ctx) =>
+            throw new NotImplementedException("while_stmt");
+
+        // for_stmt: 'for' exprlist 'in' testlist ':' block ('else' ':' block)?
+        public override ASTNode VisitFor_stmt(Python3Parser.For_stmtContext ctx) =>
+            throw new NotImplementedException("for_stmt");
+
+        // try_stmt: 'try' ':' block ((except_clause ':' block)+ ... | 'finally' ':' block)
+        public override ASTNode VisitTry_stmt(Python3Parser.Try_stmtContext ctx) =>
+            throw new NotImplementedException("try_stmt");
+
+        // with_stmt: 'with' with_item (',' with_item)* ':' block
+        public override ASTNode VisitWith_stmt(Python3Parser.With_stmtContext ctx) =>
+            throw new NotImplementedException("with_stmt");
+
+        // with_item: test ('as' expr)?
+        public override ASTNode VisitWith_item(Python3Parser.With_itemContext ctx) =>
+            throw new NotImplementedException("with_item");
+
+        // except_clause: 'except' (test ('as' name)?)?
+        public override ASTNode VisitExcept_clause(Python3Parser.Except_clauseContext ctx) =>
+            throw new NotImplementedException("except_clause");
+
+        // async_stmt: ASYNC (funcdef | with_stmt | for_stmt)
+        public override ASTNode VisitAsync_stmt(Python3Parser.Async_stmtContext ctx) =>
+            throw new NotImplementedException("async_stmt");
+
+        // flow_stmt: break_stmt | continue_stmt | return_stmt | raise_stmt | yield_stmt
+        public override ASTNode VisitFlow_stmt(Python3Parser.Flow_stmtContext ctx) =>
+            throw new NotImplementedException("flow_stmt");
+
+        // pass_stmt: 'pass'
+        public override ASTNode VisitPass_stmt(Python3Parser.Pass_stmtContext ctx) =>
+            throw new NotImplementedException("pass_stmt");
+
+        // break_stmt: 'break'
+        public override ASTNode VisitBreak_stmt(Python3Parser.Break_stmtContext ctx) =>
+            throw new NotImplementedException("break_stmt");
+
+        // continue_stmt: 'continue'
+        public override ASTNode VisitContinue_stmt(Python3Parser.Continue_stmtContext ctx) =>
+            throw new NotImplementedException("continue_stmt");
+
+        // return_stmt: 'return' testlist?
+        public override ASTNode VisitReturn_stmt(Python3Parser.Return_stmtContext ctx) =>
+            throw new NotImplementedException("return_stmt");
+
+        // raise_stmt: 'raise' (test ('from' test)?)?
+        public override ASTNode VisitRaise_stmt(Python3Parser.Raise_stmtContext ctx) =>
+            throw new NotImplementedException("raise_stmt");
+
+        // yield_stmt: yield_expr
+        public override ASTNode VisitYield_stmt(Python3Parser.Yield_stmtContext ctx) =>
+            throw new NotImplementedException("yield_stmt");
+
+        // assert_stmt: 'assert' test (',' test)?
+        public override ASTNode VisitAssert_stmt(Python3Parser.Assert_stmtContext ctx) =>
+            throw new NotImplementedException("assert_stmt");
+
+        // match_stmt: 'match' subject_expr ':' NEWLINE INDENT case_block+ DEDENT
+        public override ASTNode VisitMatch_stmt(Python3Parser.Match_stmtContext ctx) =>
+            throw new NotImplementedException("match_stmt");
+
+        // case_block: 'case' patterns guard? ':' block
+        public override ASTNode VisitCase_block(Python3Parser.Case_blockContext ctx) =>
+            throw new NotImplementedException("case_block");
+
+        // subject_expr: star_named_expression ',' star_named_expressions? | test
+        public override ASTNode VisitSubject_expr(Python3Parser.Subject_exprContext ctx) =>
+            throw new NotImplementedException("subject_expr");
+
+        // star_named_expressions: ',' star_named_expression+ ','?
+        public override ASTNode VisitStar_named_expressions(Python3Parser.Star_named_expressionsContext ctx) =>
+            throw new NotImplementedException("star_named_expressions");
+
+        // star_named_expression: '*' expr | test
+        public override ASTNode VisitStar_named_expression(Python3Parser.Star_named_expressionContext ctx) =>
+            throw new NotImplementedException("star_named_expression");
+
+        // guard: 'if' test
+        public override ASTNode VisitGuard(Python3Parser.GuardContext ctx) =>
+            throw new NotImplementedException("guard");
+
+        // patterns: open_sequence_pattern | pattern
+        public override ASTNode VisitPatterns(Python3Parser.PatternsContext ctx) =>
+            throw new NotImplementedException("patterns");
+
+        // pattern: as_pattern | or_pattern
+        public override ASTNode VisitPattern(Python3Parser.PatternContext ctx) =>
+            throw new NotImplementedException("pattern");
+
+        // as_pattern: or_pattern 'as' pattern_capture_target
+        public override ASTNode VisitAs_pattern(Python3Parser.As_patternContext ctx) =>
+            throw new NotImplementedException("as_pattern");
+
+        // or_pattern: closed_pattern ('|' closed_pattern)*
+        public override ASTNode VisitOr_pattern(Python3Parser.Or_patternContext ctx) =>
+            throw new NotImplementedException("or_pattern");
+
+        // closed_pattern: literal_pattern | capture_pattern | wildcard_pattern | value_pattern | group_pattern | sequence_pattern | mapping_pattern | class_pattern
+        public override ASTNode VisitClosed_pattern(Python3Parser.Closed_patternContext ctx) =>
+            throw new NotImplementedException("closed_pattern");
+
+        // literal_pattern: signed_number | complex_number | strings | 'None' | 'True' | 'False'
+        public override ASTNode VisitLiteral_pattern(Python3Parser.Literal_patternContext ctx) =>
+            throw new NotImplementedException("literal_pattern");
+
+        // literal_expr: signed_number | complex_number | strings | 'None' | 'True' | 'False'
+        public override ASTNode VisitLiteral_expr(Python3Parser.Literal_exprContext ctx) =>
+            throw new NotImplementedException("literal_expr");
+
+        // complex_number: signed_real_number ('+' | '-') imaginary_number
+        public override ASTNode VisitComplex_number(Python3Parser.Complex_numberContext ctx) =>
+            throw new NotImplementedException("complex_number");
+
+        // signed_number: NUMBER | '-' NUMBER
+        public override ASTNode VisitSigned_number(Python3Parser.Signed_numberContext ctx) =>
+            throw new NotImplementedException("signed_number");
+
+        // signed_real_number: real_number | '-' real_number
+        public override ASTNode VisitSigned_real_number(Python3Parser.Signed_real_numberContext ctx) =>
+            throw new NotImplementedException("signed_real_number");
+
+        // real_number: NUMBER
+        public override ASTNode VisitReal_number(Python3Parser.Real_numberContext ctx) =>
+            throw new NotImplementedException("real_number");
+
+        // imaginary_number: NUMBER
+        public override ASTNode VisitImaginary_number(Python3Parser.Imaginary_numberContext ctx) =>
+            throw new NotImplementedException("imaginary_number");
+
+        // capture_pattern: pattern_capture_target
+        public override ASTNode VisitCapture_pattern(Python3Parser.Capture_patternContext ctx) =>
+            throw new NotImplementedException("capture_pattern");
+
+        // pattern_capture_target: name
+        public override ASTNode VisitPattern_capture_target(Python3Parser.Pattern_capture_targetContext ctx) =>
+            throw new NotImplementedException("pattern_capture_target");
+
+        // wildcard_pattern: '_'
+        public override ASTNode VisitWildcard_pattern(Python3Parser.Wildcard_patternContext ctx) =>
+            throw new NotImplementedException("wildcard_pattern");
+
+        // value_pattern: attr
+        public override ASTNode VisitValue_pattern(Python3Parser.Value_patternContext ctx) =>
+            throw new NotImplementedException("value_pattern");
+
+        // attr: name ('.' name)+
+        public override ASTNode VisitAttr(Python3Parser.AttrContext ctx) =>
+            throw new NotImplementedException("attr");
+
+        // name_or_attr: attr | name
+        public override ASTNode VisitName_or_attr(Python3Parser.Name_or_attrContext ctx) =>
+            throw new NotImplementedException("name_or_attr");
+
+        // group_pattern: '(' pattern ')'
+        public override ASTNode VisitGroup_pattern(Python3Parser.Group_patternContext ctx) =>
+            throw new NotImplementedException("group_pattern");
+
+        // sequence_pattern: '[' maybe_sequence_pattern? ']' | '(' open_sequence_pattern? ')'
+        public override ASTNode VisitSequence_pattern(Python3Parser.Sequence_patternContext ctx) =>
+            throw new NotImplementedException("sequence_pattern");
+
+        // open_sequence_pattern: maybe_star_pattern ',' maybe_sequence_pattern?
+        public override ASTNode VisitOpen_sequence_pattern(Python3Parser.Open_sequence_patternContext ctx) =>
+            throw new NotImplementedException("open_sequence_pattern");
+
+        // maybe_sequence_pattern: maybe_star_pattern (',' maybe_star_pattern)* ','?
+        public override ASTNode VisitMaybe_sequence_pattern(Python3Parser.Maybe_sequence_patternContext ctx) =>
+            throw new NotImplementedException("maybe_sequence_pattern");
+
+        // maybe_star_pattern: star_pattern | pattern
+        public override ASTNode VisitMaybe_star_pattern(Python3Parser.Maybe_star_patternContext ctx) =>
+            throw new NotImplementedException("maybe_star_pattern");
+
+        // star_pattern: '*' pattern_capture_target | '*' wildcard_pattern
+        public override ASTNode VisitStar_pattern(Python3Parser.Star_patternContext ctx) =>
+            throw new NotImplementedException("star_pattern");
+
+        // mapping_pattern: '{' ... '}'
+        public override ASTNode VisitMapping_pattern(Python3Parser.Mapping_patternContext ctx) =>
+            throw new NotImplementedException("mapping_pattern");
+
+        // items_pattern: key_value_pattern (',' key_value_pattern)*
+        public override ASTNode VisitItems_pattern(Python3Parser.Items_patternContext ctx) =>
+            throw new NotImplementedException("items_pattern");
+
+        // key_value_pattern: (literal_expr | attr) ':' pattern
+        public override ASTNode VisitKey_value_pattern(Python3Parser.Key_value_patternContext ctx) =>
+            throw new NotImplementedException("key_value_pattern");
+
+        // double_star_pattern: '**' pattern_capture_target
+        public override ASTNode VisitDouble_star_pattern(Python3Parser.Double_star_patternContext ctx) =>
+            throw new NotImplementedException("double_star_pattern");
+
+        // class_pattern: name_or_attr '(' ... ')'
+        public override ASTNode VisitClass_pattern(Python3Parser.Class_patternContext ctx) =>
+            throw new NotImplementedException("class_pattern");
+
+        // positional_patterns: pattern (',' pattern)*
+        public override ASTNode VisitPositional_patterns(Python3Parser.Positional_patternsContext ctx) =>
+            throw new NotImplementedException("positional_patterns");
+
+        // keyword_patterns: keyword_pattern (',' keyword_pattern)*
+        public override ASTNode VisitKeyword_patterns(Python3Parser.Keyword_patternsContext ctx) =>
+            throw new NotImplementedException("keyword_patterns");
+
+        // keyword_pattern: name '=' pattern
+        public override ASTNode VisitKeyword_pattern(Python3Parser.Keyword_patternContext ctx) =>
+            throw new NotImplementedException("keyword_pattern");
+    }
+}
diff --git a/LINVAST.Imperative/Builders/Python/PythonASTBuilder.Types.cs b/LINVAST.Imperative/Builders/Python/PythonASTBuilder.Types.cs
new file mode 100644
index 0000000..2411509
--- /dev/null
+++ b/LINVAST.Imperative/Builders/Python/PythonASTBuilder.Types.cs
@@ -0,0 +1,14 @@
+using System;
+using LINVAST.Builders;
+using LINVAST.Imperative.Nodes;
+using LINVAST.Nodes;
+
+namespace LINVAST.Imperative.Builders.Python
+{
+    public sealed partial class PythonASTBuilder : Python3ParserBaseVisitor<ASTNode>, IASTBuilder<Python3Parser>
+    {
+        // classdef: 'class' name ('(' arglist? ')')? ':' block
+        public override ASTNode VisitClassdef(Python3Parser.ClassdefContext ctx) =>
+            throw new NotImplementedException("classdef");
+    }
+}
diff --git a/LINVAST.Imperative/Builders/Python/PythonASTBuilder.cs b/LINVAST.Imperative/Builders/Python/PythonASTBuilder.cs
new file mode 100644
index 0000000..cffa30b
--- /dev/null
+++ b/LINVAST.Imperative/Builders/Python/PythonASTBuilder.cs
@@ -0,0 +1,67 @@
+using System;
+using System.Linq;
+using Antlr4.Runtime;
+using Antlr4.Runtime.Tree;
+using LINVAST.Builders;
+using LINVAST.Exceptions;
+using LINVAST.Imperative.Nodes;
+using LINVAST.Logging;
+using LINVAST.Nodes;
+
+namespace LINVAST.Imperative.Builders.Python
+{
+    [ASTBuilder(".py")]
+    public sealed partial class PythonASTBuilder : Python3ParserBaseVisitor<ASTNode>, IASTBuilder<Python3Parser>
+    {
+        public ASTNode BuildFromSource(string code) => this.Visit(this.CreateParser(code).file_input());
+
+        public Python3Parser CreateParser(string code)
+        {
+            ICharStream stream = CharStreams.fromstring(code);
+            var lexer = new Python3Lexer(stream);
+            lexer.AddErrorListener(new ThrowExceptionErrorListener());
+            ITokenStream tokens = new CommonTokenStream(lexer);
+            var parser = new Python3Parser(tokens);
+            parser.RemoveErrorListeners();
+            parser.AddErrorListener(new ThrowExceptionErrorListener());
+            return parser;
+        }
+
+        public ASTNode BuildFromSource(string code, Func<Python3Parser, ParserRuleContext> entryProvider) =>
+            this.Visit(entryProvider(this.CreateParser(code)));
+
+        public override ASTNode Visit(IParseTree tree)
+        {
+            LogObj.Visit(tree as ParserRuleContext);
+            try {
+                return base.Visit(tree);
+            } catch (NullReferenceException e) {
+                throw new SyntaxErrorException("Source file contained unexpected content", e);
+            }
+        }
+
+        public override ASTNode VisitFile_input(Python3Parser.File_inputContext ctx)
+        {
+            var children = ctx.stmt().Select(this.Visit);
+            return new SourceNode(children);
+        }
+
+        public override ASTNode VisitStmt(Python3Parser.StmtContext ctx)
+        {
+            if (ctx.simple_stmts() is not null)
+                return this.Visit(ctx.simple_stmts());
+            return this.Visit(ctx.compound_stmt());
+        }
+
+        public override ASTNode VisitSimple_stmts(Python3Parser.Simple_stmtsContext ctx)
+        {
+            var stmts = ctx.simple_stmt().Select(this.Visit).ToArray();
+            if (stmts.Length == 1)
+                return stmts[0];
+            return new BlockStatNode(ctx.Start.Line, stmts);
+        }
+
+        public override ASTNode VisitSimple_stmt(Python3Parser.Simple_stmtContext ctx) =>
+            this.Visit(ctx.children.Single(c => c is ParserRuleContext));
+    }
+}