diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index 7c31fce28..aa8487597 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "0.1.0-alpha.21"
+  ".": "0.1.0-alpha.22"
 }
\ No newline at end of file
diff --git a/.stats.yml b/.stats.yml
index 983dd6311..b5c83ac18 100644
--- a/.stats.yml
+++ b/.stats.yml
@@ -1,4 +1,4 @@
 configured_endpoints: 195
-openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/increase%2Fincrease-983a38b280126eee3cd2a12eb7847bc36551f24cf7fdcdffe20e564e2c0d21c4.yml
-openapi_spec_hash: 273aa48b03116314693f8870c4c71f9b
+openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/increase%2Fincrease-99d09de90656238ac57bf6711950f043967548c1c4e2ad31b606dd51e0daa3e9.yml
+openapi_spec_hash: 597d3aed886356d053b7c571cab6380b
 config_hash: 1619155422217276e2489ae10ce63a25
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2359c7df4..7de45210f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,14 @@
 # Changelog
 
+## 0.1.0-alpha.22 (2025-05-12)
+
+Full Changelog: [v0.1.0-alpha.21...v0.1.0-alpha.22](https://github.com/Increase/increase-ruby/compare/v0.1.0-alpha.21...v0.1.0-alpha.22)
+
+### Features
+
+* **api:** api update ([e9058dd](https://github.com/Increase/increase-ruby/commit/e9058dd6b8bf03cca193810a0973ffb0cd242b51))
+* support sorbet aliases at the runtime ([38e39cf](https://github.com/Increase/increase-ruby/commit/38e39cfce387746d743d13133b2d1e17c3b5fa86))
+
 ## 0.1.0-alpha.21 (2025-05-09)
 
 Full Changelog: [v0.1.0-alpha.20...v0.1.0-alpha.21](https://github.com/Increase/increase-ruby/compare/v0.1.0-alpha.20...v0.1.0-alpha.21)
diff --git a/Gemfile.lock b/Gemfile.lock
index 1ce0868bc..975bcfc4c 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -11,7 +11,7 @@ GIT
 PATH
   remote: .
   specs:
-    increase (0.1.0.pre.alpha.21)
+    increase (0.1.0.pre.alpha.22)
       connection_pool
 
 GEM
diff --git a/README.md b/README.md
index feb113cdf..cf16a5245 100644
--- a/README.md
+++ b/README.md
@@ -15,7 +15,7 @@ To use this gem, install via Bundler by adding the following to your application
 <!-- x-release-please-start-version -->
 
 ```ruby
-gem "increase", "~> 0.1.0.pre.alpha.21"
+gem "increase", "~> 0.1.0.pre.alpha.22"
 ```
 
 <!-- x-release-please-end -->
diff --git a/lib/increase/internal.rb b/lib/increase/internal.rb
index 68d965595..1f0b8df5f 100644
--- a/lib/increase/internal.rb
+++ b/lib/increase/internal.rb
@@ -2,10 +2,16 @@
 
 module Increase
   module Internal
+    extend Increase::Internal::Util::SorbetRuntimeSupport
+
     OMIT =
       Object.new.tap do
         _1.define_singleton_method(:inspect) { "#<#{Increase::Internal}::OMIT>" }
       end
         .freeze
+
+    define_sorbet_constant!(:AnyHash) do
+      T.type_alias { T::Hash[Symbol, T.anything] }
+    end
   end
 end
diff --git a/lib/increase/internal/transport/base_client.rb b/lib/increase/internal/transport/base_client.rb
index 96202fc2e..3c8099c13 100644
--- a/lib/increase/internal/transport/base_client.rb
+++ b/lib/increase/internal/transport/base_client.rb
@@ -7,6 +7,8 @@ module Transport
       #
       # @abstract
       class BaseClient
+        extend Increase::Internal::Util::SorbetRuntimeSupport
+
         # from whatwg fetch spec
         MAX_REDIRECTS = 20
 
@@ -477,6 +479,51 @@ def inspect
           "#<#{self.class.name}:0x#{object_id.to_s(16)} base_url=#{base_url} max_retries=#{@max_retries} timeout=#{@timeout}>"
           # rubocop:enable Layout/LineLength
         end
+
+        define_sorbet_constant!(:RequestComponents) do
+          T.type_alias do
+            {
+              method: Symbol,
+              path: T.any(String, T::Array[String]),
+              query: T.nilable(T::Hash[String, T.nilable(T.any(T::Array[String], String))]),
+              headers: T.nilable(
+                T::Hash[String,
+                        T.nilable(
+                          T.any(
+                            String,
+                            Integer,
+                            T::Array[T.nilable(T.any(String, Integer))]
+                          )
+                        )]
+              ),
+              body: T.nilable(T.anything),
+              unwrap: T.nilable(
+                T.any(
+                  Symbol,
+                  Integer,
+                  T::Array[T.any(Symbol, Integer)],
+                  T.proc.params(arg0: T.anything).returns(T.anything)
+                )
+              ),
+              page: T.nilable(T::Class[Increase::Internal::Type::BasePage[Increase::Internal::Type::BaseModel]]),
+              stream: T.nilable(T::Class[T.anything]),
+              model: T.nilable(Increase::Internal::Type::Converter::Input),
+              options: T.nilable(Increase::RequestOptions::OrHash)
+            }
+          end
+        end
+        define_sorbet_constant!(:RequestInput) do
+          T.type_alias do
+            {
+              method: Symbol,
+              url: URI::Generic,
+              headers: T::Hash[String, String],
+              body: T.anything,
+              max_retries: Integer,
+              timeout: Float
+            }
+          end
+        end
       end
     end
   end
diff --git a/lib/increase/internal/transport/pooled_net_requester.rb b/lib/increase/internal/transport/pooled_net_requester.rb
index bcc31e3b6..ae137fc0e 100644
--- a/lib/increase/internal/transport/pooled_net_requester.rb
+++ b/lib/increase/internal/transport/pooled_net_requester.rb
@@ -5,6 +5,8 @@ module Internal
     module Transport
       # @api private
       class PooledNetRequester
+        extend Increase::Internal::Util::SorbetRuntimeSupport
+
         # from the golang stdlib
         # https://github.com/golang/go/blob/c8eced8580028328fde7c03cbfcb720ce15b2358/src/net/http/transport.go#L49
         KEEP_ALIVE_TIMEOUT = 30
@@ -187,6 +189,18 @@ def initialize(size: Etc.nprocessors)
           @size = size
           @pools = {}
         end
+
+        define_sorbet_constant!(:Request) do
+          T.type_alias do
+            {
+              method: Symbol,
+              url: URI::Generic,
+              headers: T::Hash[String, String],
+              body: T.anything,
+              deadline: Float
+            }
+          end
+        end
       end
     end
   end
diff --git a/lib/increase/internal/type/array_of.rb b/lib/increase/internal/type/array_of.rb
index 345fafbdf..95b930f34 100644
--- a/lib/increase/internal/type/array_of.rb
+++ b/lib/increase/internal/type/array_of.rb
@@ -29,7 +29,7 @@ class ArrayOf
         #
         #   @option spec [Boolean] :"nil?"
         #
-        # @return [Increase::Internal::Type::ArrayOf]
+        # @return [self]
         def self.[](...) = new(...)
 
         # @api public
diff --git a/lib/increase/internal/type/base_model.rb b/lib/increase/internal/type/base_model.rb
index df08f29c9..65e6c18ad 100644
--- a/lib/increase/internal/type/base_model.rb
+++ b/lib/increase/internal/type/base_model.rb
@@ -6,6 +6,7 @@ module Type
       # @abstract
       class BaseModel
         extend Increase::Internal::Type::Converter
+        extend Increase::Internal::Util::SorbetRuntimeSupport
 
         class << self
           # @api private
@@ -13,11 +14,17 @@ class << self
           # Assumes superclass fields are totally defined before fields are accessed /
           # defined on subclasses.
           #
-          # @return [Hash{Symbol=>Hash{Symbol=>Object}}]
-          def known_fields
-            @known_fields ||= (self < Increase::Internal::Type::BaseModel ? superclass.known_fields.dup : {})
+          # @param child [Class<Increase::Internal::Type::BaseModel>]
+          def inherited(child)
+            super
+            child.known_fields.replace(known_fields.dup)
           end
 
+          # @api private
+          #
+          # @return [Hash{Symbol=>Hash{Symbol=>Object}}]
+          def known_fields = @known_fields ||= {}
+
           # @api private
           #
           # @return [Hash{Symbol=>Hash{Symbol=>Object}}]
@@ -206,7 +213,7 @@ class << self
           #
           #   @option state [Integer] :branched
           #
-          # @return [Increase::Internal::Type::BaseModel, Object]
+          # @return [self, Object]
           def coerce(value, state:)
             exactness = state.fetch(:exactness)
 
@@ -265,7 +272,7 @@ def coerce(value, state:)
 
           # @api private
           #
-          # @param value [Increase::Internal::Type::BaseModel, Object]
+          # @param value [self, Object]
           #
           # @param state [Hash{Symbol=>Object}] .
           #
@@ -431,6 +438,10 @@ def to_s = self.class.walk(@data).to_s
         #
         # @return [String]
         def inspect = "#<#{self.class}:0x#{object_id.to_s(16)} #{self}>"
+
+        define_sorbet_constant!(:KnownField) do
+          T.type_alias { {mode: T.nilable(Symbol), required: T::Boolean, nilable: T::Boolean} }
+        end
       end
     end
   end
diff --git a/lib/increase/internal/type/converter.rb b/lib/increase/internal/type/converter.rb
index c087a4efa..7dd0e4873 100644
--- a/lib/increase/internal/type/converter.rb
+++ b/lib/increase/internal/type/converter.rb
@@ -5,6 +5,8 @@ module Internal
     module Type
       # @api private
       module Converter
+        extend Increase::Internal::Util::SorbetRuntimeSupport
+
         # rubocop:disable Lint/UnusedMethodArgument
 
         # @api private
@@ -268,6 +270,22 @@ def inspect(target, depth:)
             end
           end
         end
+
+        define_sorbet_constant!(:Input) do
+          T.type_alias { T.any(Increase::Internal::Type::Converter, T::Class[T.anything]) }
+        end
+        define_sorbet_constant!(:CoerceState) do
+          T.type_alias do
+            {
+              strictness: T.any(T::Boolean, Symbol),
+              exactness: {yes: Integer, no: Integer, maybe: Integer},
+              branched: Integer
+            }
+          end
+        end
+        define_sorbet_constant!(:DumpState) do
+          T.type_alias { {can_retry: T::Boolean} }
+        end
       end
     end
   end
diff --git a/lib/increase/internal/type/enum.rb b/lib/increase/internal/type/enum.rb
index e4d1f446b..c7ac186f6 100644
--- a/lib/increase/internal/type/enum.rb
+++ b/lib/increase/internal/type/enum.rb
@@ -17,6 +17,7 @@ module Type
       # values safely.
       module Enum
         include Increase::Internal::Type::Converter
+        include Increase::Internal::Util::SorbetRuntimeSupport
 
         # All of the valid Symbol values for this enum.
         #
diff --git a/lib/increase/internal/type/hash_of.rb b/lib/increase/internal/type/hash_of.rb
index 7b482a157..7223c8df4 100644
--- a/lib/increase/internal/type/hash_of.rb
+++ b/lib/increase/internal/type/hash_of.rb
@@ -29,7 +29,7 @@ class HashOf
         #
         #   @option spec [Boolean] :"nil?"
         #
-        # @return [Increase::Internal::Type::HashOf]
+        # @return [self]
         def self.[](...) = new(...)
 
         # @api public
diff --git a/lib/increase/internal/type/union.rb b/lib/increase/internal/type/union.rb
index be2a9ab0b..7e0464912 100644
--- a/lib/increase/internal/type/union.rb
+++ b/lib/increase/internal/type/union.rb
@@ -6,6 +6,7 @@ module Type
       # @api private
       module Union
         include Increase::Internal::Type::Converter
+        include Increase::Internal::Util::SorbetRuntimeSupport
 
         # @api private
         #
diff --git a/lib/increase/internal/util.rb b/lib/increase/internal/util.rb
index c04d6acc1..d1ae02194 100644
--- a/lib/increase/internal/util.rb
+++ b/lib/increase/internal/util.rb
@@ -801,6 +801,62 @@ def decode_sse(lines)
           end
         end
       end
+
+      # @api private
+      module SorbetRuntimeSupport
+        class MissingSorbetRuntimeError < ::RuntimeError
+        end
+
+        # @api private
+        #
+        # @return [Hash{Symbol=>Object}]
+        private def sorbet_runtime_constants = @sorbet_runtime_constants ||= {}
+
+        # @api private
+        #
+        # @param name [Symbol]
+        def const_missing(name)
+          super unless sorbet_runtime_constants.key?(name)
+
+          unless Object.const_defined?(:T)
+            message = "Trying to access a Sorbet constant #{name.inspect} without `sorbet-runtime`."
+            raise MissingSorbetRuntimeError.new(message)
+          end
+
+          sorbet_runtime_constants.fetch(name).call
+        end
+
+        # @api private
+        #
+        # @param name [Symbol]
+        # @param blk [Proc]
+        def define_sorbet_constant!(name, &blk) = sorbet_runtime_constants.store(name, blk)
+      end
+
+      extend Increase::Internal::Util::SorbetRuntimeSupport
+
+      define_sorbet_constant!(:ParsedUri) do
+        T.type_alias do
+          {
+            scheme: T.nilable(String),
+            host: T.nilable(String),
+            port: T.nilable(Integer),
+            path: T.nilable(String),
+            query: T::Hash[String, T::Array[String]]
+          }
+        end
+      end
+
+      define_sorbet_constant!(:ServerSentEvent) do
+        T.type_alias do
+          {
+            event: T.nilable(String),
+            data: T.nilable(String),
+            id: T.nilable(String),
+            retry: T.nilable(Integer)
+          }
+        end
+      end
     end
   end
 end
diff --git a/lib/increase/models.rb b/lib/increase/models.rb
index 9bf1b4dc9..54b778103 100644
--- a/lib/increase/models.rb
+++ b/lib/increase/models.rb
@@ -1,6 +1,33 @@
 # frozen_string_literal: true
 
 module Increase
+  [Increase::Internal::Type::BaseModel, *Increase::Internal::Type::BaseModel.subclasses].each do |cls|
+    cls.define_sorbet_constant!(:OrHash) { T.type_alias { T.any(cls, Increase::Internal::AnyHash) } }
+  end
+
+  [
+    *Increase::Internal::Type::Enum.included_modules,
+    *Increase::Internal::Type::Union.included_modules
+  ].each do |cls|
+    cls.constants.each do |name|
+      case cls.const_get(name)
+      in true | false
+        cls.define_sorbet_constant!(:TaggedBoolean) { T.type_alias { T.all(T::Boolean, cls) } }
+        cls.define_sorbet_constant!(:OrBoolean) { T.type_alias { T::Boolean } }
+      in Integer
+        cls.define_sorbet_constant!(:TaggedInteger) { T.type_alias { T.all(Integer, cls) } }
+        cls.define_sorbet_constant!(:OrInteger) { T.type_alias { Integer } }
+      in Float
+        cls.define_sorbet_constant!(:TaggedFloat) { T.type_alias { T.all(Float, cls) } }
+        cls.define_sorbet_constant!(:OrFloat) { T.type_alias { Float } }
+      in Symbol
+        cls.define_sorbet_constant!(:TaggedSymbol) { T.type_alias { T.all(Symbol, cls) } }
+        cls.define_sorbet_constant!(:OrSymbol) { T.type_alias { T.any(Symbol, String) } }
+      else
+      end
+    end
+  end
+
   Account = Increase::Models::Account
 
   AccountBalanceParams = Increase::Models::AccountBalanceParams
diff --git a/lib/increase/models/simulations/program_create_params.rb b/lib/increase/models/simulations/program_create_params.rb
index 3bd5e0104..54e86e4f4 100644
--- a/lib/increase/models/simulations/program_create_params.rb
+++ b/lib/increase/models/simulations/program_create_params.rb
@@ -14,9 +14,17 @@ class ProgramCreateParams < Increase::Internal::Type::BaseModel
         #   @return [String]
         required :name, String
 
-        # @!method initialize(name:, request_options: {})
+        # @!attribute reserve_account_id
+        #   The identifier of the Account the Program should be added to is for.
+        #
+        #   @return [String, nil]
+        optional :reserve_account_id, String
+
+        # @!method initialize(name:, reserve_account_id: nil, request_options: {})
         #   @param name [String] The name of the program being added.
         #
+        #   @param reserve_account_id [String] The identifier of the Account the Program should be added to is for.
+        #
         #   @param request_options [Increase::RequestOptions, Hash{Symbol=>Object}]
       end
     end
diff --git a/lib/increase/request_options.rb b/lib/increase/request_options.rb
index 31c109e45..a43c7d09a 100644
--- a/lib/increase/request_options.rb
+++ b/lib/increase/request_options.rb
@@ -69,5 +69,9 @@ def self.validate!(opts)
     #   Returns a new instance of RequestOptions.
     #
     #   @param values [Hash{Symbol=>Object}]
+
+    define_sorbet_constant!(:OrHash) do
+      T.type_alias { T.any(Increase::RequestOptions, Increase::Internal::AnyHash) }
+    end
   end
 end
diff --git a/lib/increase/resources/simulations/programs.rb b/lib/increase/resources/simulations/programs.rb
index b749db1f3..6a93ecfc9 100644
--- a/lib/increase/resources/simulations/programs.rb
+++ b/lib/increase/resources/simulations/programs.rb
@@ -9,10 +9,12 @@ class Programs
         # operates more than one program, `program_id` is a required field when creating
         # accounts.
         #
-        # @overload create(name:, request_options: {})
+        # @overload create(name:, reserve_account_id: nil, request_options: {})
         #
         # @param name [String] The name of the program being added.
         #
+        # @param reserve_account_id [String] The identifier of the Account the Program should be added to is for.
+        #
         # @param request_options [Increase::RequestOptions, Hash{Symbol=>Object}, nil]
         #
         # @return [Increase::Program]
diff --git a/lib/increase/version.rb b/lib/increase/version.rb
index 3d915bebc..dd27ba10a 100644
--- a/lib/increase/version.rb
+++ b/lib/increase/version.rb
@@ -1,5 +1,5 @@
 # frozen_string_literal: true
 
 module Increase
-  VERSION = "0.1.0.pre.alpha.21"
+  VERSION = "0.1.0.pre.alpha.22"
 end
diff --git a/rbi/increase/errors.rbi b/rbi/increase/errors.rbi
index 3dd72be0f..47e40e62e 100644
--- a/rbi/increase/errors.rbi
+++ b/rbi/increase/errors.rbi
@@ -104,7 +104,7 @@ module Increase
           request: NilClass,
           response: NilClass,
           message: T.nilable(String)
-        ).returns(T.attached_class)
+        ).returns(T.self_type)
       end
       def self.for(url:, status:, body:, request:, response:, message: nil)
       end
diff --git a/rbi/increase/internal.rbi b/rbi/increase/internal.rbi
index 1929e1cf5..ec191d1a6 100644
--- a/rbi/increase/internal.rbi
+++ b/rbi/increase/internal.rbi
@@ -2,6 +2,8 @@
 
 module Increase
   module Internal
+    extend Increase::Internal::Util::SorbetRuntimeSupport
+
     # Due to the current WIP status of Shapes support in Sorbet, types referencing
     # this alias might be refined in the future.
     AnyHash = T.type_alias { T::Hash[Symbol, T.anything] }
diff --git a/rbi/increase/internal/transport/base_client.rbi b/rbi/increase/internal/transport/base_client.rbi
index 49a74865f..f5047782b 100644
--- a/rbi/increase/internal/transport/base_client.rbi
+++ b/rbi/increase/internal/transport/base_client.rbi
@@ -5,9 +5,11 @@ module Increase
     module Transport
       # @api private
       class BaseClient
+        extend Increase::Internal::Util::SorbetRuntimeSupport
+
         abstract!
 
-        RequestComponentsShape =
+        RequestComponents =
           T.type_alias do
             {
               method: Symbol,
@@ -53,7 +55,7 @@ module Increase
             }
           end
 
-        RequestInputShape =
+        RequestInput =
           T.type_alias do
             {
               method: Symbol,
@@ -74,8 +76,7 @@ module Increase
           # @api private
           sig do
             params(
-              req:
-                Increase::Internal::Transport::BaseClient::RequestComponentsShape
+              req: Increase::Internal::Transport::BaseClient::RequestComponents
             ).void
           end
           def validate!(req)
@@ -94,13 +95,10 @@ module Increase
           # @api private
           sig do
             params(
-              request:
-                Increase::Internal::Transport::BaseClient::RequestInputShape,
+              request: Increase::Internal::Transport::BaseClient::RequestInput,
               status: Integer,
               response_headers: T.any(T::Hash[String, String], Net::HTTPHeader)
-            ).returns(
-              Increase::Internal::Transport::BaseClient::RequestInputShape
-            )
+            ).returns(Increase::Internal::Transport::BaseClient::RequestInput)
           end
           def follow_redirect(request, status:, response_headers:)
           end
@@ -167,13 +165,10 @@ module Increase
         sig do
           overridable
             .params(
-              req:
-                Increase::Internal::Transport::BaseClient::RequestComponentsShape,
+              req: Increase::Internal::Transport::BaseClient::RequestComponents,
               opts: Increase::Internal::AnyHash
             )
-            .returns(
-              Increase::Internal::Transport::BaseClient::RequestInputShape
-            )
+            .returns(Increase::Internal::Transport::BaseClient::RequestInput)
         end
         private def build_request(req, opts)
         end
@@ -191,8 +186,7 @@ module Increase
         # @api private
         sig do
           params(
-            request:
-              Increase::Internal::Transport::BaseClient::RequestInputShape,
+            request: Increase::Internal::Transport::BaseClient::RequestInput,
             redirect_count: Integer,
             retry_count: Integer,
             send_retry_header: T::Boolean
diff --git a/rbi/increase/internal/transport/pooled_net_requester.rbi b/rbi/increase/internal/transport/pooled_net_requester.rbi
index 734b721e5..89141b6f0 100644
--- a/rbi/increase/internal/transport/pooled_net_requester.rbi
+++ b/rbi/increase/internal/transport/pooled_net_requester.rbi
@@ -5,7 +5,9 @@ module Increase
     module Transport
       # @api private
       class PooledNetRequester
-        RequestShape =
+        extend Increase::Internal::Util::SorbetRuntimeSupport
+
+        Request =
           T.type_alias do
             {
               method: Symbol,
@@ -35,7 +37,7 @@ module Increase
           sig do
             params(
               request:
-                Increase::Internal::Transport::PooledNetRequester::RequestShape,
+                Increase::Internal::Transport::PooledNetRequester::Request,
               blk: T.proc.params(arg0: String).void
             ).returns([Net::HTTPGenericRequest, T.proc.void])
           end
@@ -57,8 +59,7 @@ module Increase
         # @api private
         sig do
           params(
-            request:
-              Increase::Internal::Transport::PooledNetRequester::RequestShape
+            request: Increase::Internal::Transport::PooledNetRequester::Request
           ).returns([Integer, Net::HTTPResponse, T::Enumerable[String]])
         end
         def execute(request)
diff --git a/rbi/increase/internal/type/base_model.rbi b/rbi/increase/internal/type/base_model.rbi
index b9dff14f7..dcaf5cd51 100644
--- a/rbi/increase/internal/type/base_model.rbi
+++ b/rbi/increase/internal/type/base_model.rbi
@@ -5,10 +5,11 @@ module Increase
     module Type
       class BaseModel
         extend Increase::Internal::Type::Converter
+        extend Increase::Internal::Util::SorbetRuntimeSupport
 
         abstract!
 
-        KnownFieldShape =
+        KnownField =
           T.type_alias do
             {
               mode: T.nilable(Symbol),
@@ -18,19 +19,29 @@ module Increase
           end
 
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::Internal::Type::BaseModel,
+              Increase::Internal::AnyHash
+            )
+          end
 
         class << self
           # @api private
           #
           # Assumes superclass fields are totally defined before fields are accessed /
           # defined on subclasses.
+          sig { params(child: T.self_type).void }
+          def inherited(child)
+          end
+
+          # @api private
           sig do
             returns(
               T::Hash[
                 Symbol,
                 T.all(
-                  Increase::Internal::Type::BaseModel::KnownFieldShape,
+                  Increase::Internal::Type::BaseModel::KnownField,
                   {
                     type_fn:
                       T.proc.returns(Increase::Internal::Type::Converter::Input)
@@ -48,7 +59,7 @@ module Increase
               T::Hash[
                 Symbol,
                 T.all(
-                  Increase::Internal::Type::BaseModel::KnownFieldShape,
+                  Increase::Internal::Type::BaseModel::KnownField,
                   { type: Increase::Internal::Type::Converter::Input }
                 )
               ]
diff --git a/rbi/increase/internal/type/base_page.rbi b/rbi/increase/internal/type/base_page.rbi
index a90ea04aa..e6521378b 100644
--- a/rbi/increase/internal/type/base_page.rbi
+++ b/rbi/increase/internal/type/base_page.rbi
@@ -29,8 +29,7 @@ module Increase
         sig do
           params(
             client: Increase::Internal::Transport::BaseClient,
-            req:
-              Increase::Internal::Transport::BaseClient::RequestComponentsShape,
+            req: Increase::Internal::Transport::BaseClient::RequestComponents,
             headers: T.any(T::Hash[String, String], Net::HTTPHeader),
             page_data: T.anything
           ).void
diff --git a/rbi/increase/internal/type/converter.rbi b/rbi/increase/internal/type/converter.rbi
index b02f53f5d..7610b8dad 100644
--- a/rbi/increase/internal/type/converter.rbi
+++ b/rbi/increase/internal/type/converter.rbi
@@ -5,6 +5,8 @@ module Increase
     module Type
       # @api private
       module Converter
+        extend Increase::Internal::Util::SorbetRuntimeSupport
+
         Input =
           T.type_alias do
             T.any(Increase::Internal::Type::Converter, T::Class[T.anything])
diff --git a/rbi/increase/internal/type/enum.rbi b/rbi/increase/internal/type/enum.rbi
index 6137f9702..09db3360c 100644
--- a/rbi/increase/internal/type/enum.rbi
+++ b/rbi/increase/internal/type/enum.rbi
@@ -17,6 +17,7 @@ module Increase
       # values safely.
       module Enum
         include Increase::Internal::Type::Converter
+        include Increase::Internal::Util::SorbetRuntimeSupport
 
         # All of the valid Symbol values for this enum.
         sig do
diff --git a/rbi/increase/internal/type/union.rbi b/rbi/increase/internal/type/union.rbi
index e1e5201ca..4c873164d 100644
--- a/rbi/increase/internal/type/union.rbi
+++ b/rbi/increase/internal/type/union.rbi
@@ -6,6 +6,7 @@ module Increase
       # @api private
       module Union
         include Increase::Internal::Type::Converter
+        include Increase::Internal::Util::SorbetRuntimeSupport
 
         # @api private
         #
diff --git a/rbi/increase/internal/util.rbi b/rbi/increase/internal/util.rbi
index a8a5364f4..3d42fefcd 100644
--- a/rbi/increase/internal/util.rbi
+++ b/rbi/increase/internal/util.rbi
@@ -4,6 +4,8 @@ module Increase
   module Internal
     # @api private
     module Util
+      extend Increase::Internal::Util::SorbetRuntimeSupport
+
       # @api private
       sig { returns(Float) }
       def self.monotonic_secs
@@ -172,7 +174,7 @@ module Increase
         end
       end
 
-      ParsedUriShape =
+      ParsedUri =
         T.type_alias do
           {
             scheme: T.nilable(String),
@@ -187,7 +189,7 @@ module Increase
         # @api private
         sig do
           params(url: T.any(URI::Generic, String)).returns(
-            Increase::Internal::Util::ParsedUriShape
+            Increase::Internal::Util::ParsedUri
           )
         end
         def parse_uri(url)
@@ -195,7 +197,7 @@ module Increase
 
         # @api private
         sig do
-          params(parsed: Increase::Internal::Util::ParsedUriShape).returns(
+          params(parsed: Increase::Internal::Util::ParsedUri).returns(
             URI::Generic
           )
         end
@@ -205,8 +207,8 @@ module Increase
         # @api private
         sig do
           params(
-            lhs: Increase::Internal::Util::ParsedUriShape,
-            rhs: Increase::Internal::Util::ParsedUriShape
+            lhs: Increase::Internal::Util::ParsedUri,
+            rhs: Increase::Internal::Util::ParsedUri
           ).returns(URI::Generic)
         end
         def join_parsed_uri(lhs, rhs)
@@ -423,6 +425,27 @@ module Increase
         def decode_sse(lines)
         end
       end
+
+      # @api private
+      module SorbetRuntimeSupport
+        class MissingSorbetRuntimeError < ::RuntimeError
+        end
+
+        # @api private
+        sig { returns(T::Hash[Symbol, T.anything]) }
+        private def sorbet_runtime_constants
+        end
+
+        # @api private
+        sig { params(name: Symbol).void }
+        def const_missing(name)
+        end
+
+        # @api private
+        sig { params(name: Symbol, blk: T.proc.returns(T.anything)).void }
+        def define_sorbet_constant!(name, &blk)
+        end
+      end
     end
   end
 end
diff --git a/rbi/increase/models/account.rbi b/rbi/increase/models/account.rbi
index 1dad76c0b..5dd4d6fbe 100644
--- a/rbi/increase/models/account.rbi
+++ b/rbi/increase/models/account.rbi
@@ -3,7 +3,8 @@
 module Increase
   module Models
     class Account < Increase::Internal::Type::BaseModel
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias { T.any(Increase::Account, Increase::Internal::AnyHash) }
 
       # The Account identifier.
       sig { returns(String) }
diff --git a/rbi/increase/models/account_balance_params.rbi b/rbi/increase/models/account_balance_params.rbi
index a96963b5f..b893b5414 100644
--- a/rbi/increase/models/account_balance_params.rbi
+++ b/rbi/increase/models/account_balance_params.rbi
@@ -6,7 +6,10 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(Increase::AccountBalanceParams, Increase::Internal::AnyHash)
+        end
 
       # The moment to query the balance at. If not set, returns the current balances.
       sig { returns(T.nilable(Time)) }
diff --git a/rbi/increase/models/account_close_params.rbi b/rbi/increase/models/account_close_params.rbi
index 6a01d9c9f..484c90ff4 100644
--- a/rbi/increase/models/account_close_params.rbi
+++ b/rbi/increase/models/account_close_params.rbi
@@ -6,7 +6,10 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(Increase::AccountCloseParams, Increase::Internal::AnyHash)
+        end
 
       sig do
         params(request_options: Increase::RequestOptions::OrHash).returns(
diff --git a/rbi/increase/models/account_create_params.rbi b/rbi/increase/models/account_create_params.rbi
index 38c2b7289..3bd55a19f 100644
--- a/rbi/increase/models/account_create_params.rbi
+++ b/rbi/increase/models/account_create_params.rbi
@@ -6,7 +6,10 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(Increase::AccountCreateParams, Increase::Internal::AnyHash)
+        end
 
       # The name you choose for the Account.
       sig { returns(String) }
diff --git a/rbi/increase/models/account_list_params.rbi b/rbi/increase/models/account_list_params.rbi
index 4fbaff679..ee2777e32 100644
--- a/rbi/increase/models/account_list_params.rbi
+++ b/rbi/increase/models/account_list_params.rbi
@@ -6,7 +6,10 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(Increase::AccountListParams, Increase::Internal::AnyHash)
+        end
 
       sig { returns(T.nilable(Increase::AccountListParams::CreatedAt)) }
       attr_reader :created_at
@@ -124,7 +127,12 @@ module Increase
 
       class CreatedAt < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::AccountListParams::CreatedAt,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # Return results after this [ISO 8601](https://en.wikipedia.org/wiki/ISO_8601)
         # timestamp.
@@ -193,7 +201,12 @@ module Increase
 
       class Status < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::AccountListParams::Status,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # Filter Accounts for those with the specified status. For GET requests, this
         # should be encoded as a comma-delimited string, such as `?in=one,two,three`.
diff --git a/rbi/increase/models/account_number.rbi b/rbi/increase/models/account_number.rbi
index 03851aafd..9258dc626 100644
--- a/rbi/increase/models/account_number.rbi
+++ b/rbi/increase/models/account_number.rbi
@@ -3,7 +3,10 @@
 module Increase
   module Models
     class AccountNumber < Increase::Internal::Type::BaseModel
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(Increase::AccountNumber, Increase::Internal::AnyHash)
+        end
 
       # The Account Number identifier.
       sig { returns(String) }
@@ -139,7 +142,12 @@ module Increase
 
       class InboundACH < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::AccountNumber::InboundACH,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # Whether ACH debits are allowed against this Account Number. Note that they will
         # still be declined if this is `allowed` if the Account Number is not active.
@@ -214,7 +222,12 @@ module Increase
 
       class InboundChecks < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::AccountNumber::InboundChecks,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # How Increase should process checks with this account number printed on them.
         sig do
diff --git a/rbi/increase/models/account_number_create_params.rbi b/rbi/increase/models/account_number_create_params.rbi
index 42ac48668..2f5886e61 100644
--- a/rbi/increase/models/account_number_create_params.rbi
+++ b/rbi/increase/models/account_number_create_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::AccountNumberCreateParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       # The Account the Account Number should belong to.
       sig { returns(String) }
@@ -84,7 +90,12 @@ module Increase
 
       class InboundACH < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::AccountNumberCreateParams::InboundACH,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # Whether ACH debits are allowed against this Account Number. Note that ACH debits
         # will be declined if this is `allowed` but the Account Number is not active. If
@@ -165,7 +176,12 @@ module Increase
 
       class InboundChecks < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::AccountNumberCreateParams::InboundChecks,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # How Increase should process checks with this account number printed on them. If
         # you do not specify this field, the default is `check_transfers_only`.
diff --git a/rbi/increase/models/account_number_list_params.rbi b/rbi/increase/models/account_number_list_params.rbi
index ced8f7552..bd2a2de28 100644
--- a/rbi/increase/models/account_number_list_params.rbi
+++ b/rbi/increase/models/account_number_list_params.rbi
@@ -6,7 +6,10 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(Increase::AccountNumberListParams, Increase::Internal::AnyHash)
+        end
 
       # Filter Account Numbers to those belonging to the specified Account.
       sig { returns(T.nilable(String)) }
@@ -123,7 +126,12 @@ module Increase
 
       class ACHDebitStatus < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::AccountNumberListParams::ACHDebitStatus,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # The ACH Debit status to retrieve Account Numbers for. For GET requests, this
         # should be encoded as a comma-delimited string, such as `?in=one,two,three`.
@@ -216,7 +224,12 @@ module Increase
 
       class CreatedAt < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::AccountNumberListParams::CreatedAt,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # Return results after this [ISO 8601](https://en.wikipedia.org/wiki/ISO_8601)
         # timestamp.
@@ -285,7 +298,12 @@ module Increase
 
       class Status < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::AccountNumberListParams::Status,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # The status to retrieve Account Numbers for. For GET requests, this should be
         # encoded as a comma-delimited string, such as `?in=one,two,three`.
diff --git a/rbi/increase/models/account_number_retrieve_params.rbi b/rbi/increase/models/account_number_retrieve_params.rbi
index 5d9bfbe20..0933469d5 100644
--- a/rbi/increase/models/account_number_retrieve_params.rbi
+++ b/rbi/increase/models/account_number_retrieve_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::AccountNumberRetrieveParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       sig do
         params(request_options: Increase::RequestOptions::OrHash).returns(
diff --git a/rbi/increase/models/account_number_update_params.rbi b/rbi/increase/models/account_number_update_params.rbi
index fa312a720..23618f601 100644
--- a/rbi/increase/models/account_number_update_params.rbi
+++ b/rbi/increase/models/account_number_update_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::AccountNumberUpdateParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       # Options related to how this Account Number handles inbound ACH transfers.
       sig do
@@ -98,7 +104,12 @@ module Increase
 
       class InboundACH < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::AccountNumberUpdateParams::InboundACH,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # Whether ACH debits are allowed against this Account Number. Note that ACH debits
         # will be declined if this is `allowed` but the Account Number is not active.
@@ -186,7 +197,12 @@ module Increase
 
       class InboundChecks < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::AccountNumberUpdateParams::InboundChecks,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # How Increase should process checks with this account number printed on them.
         sig do
diff --git a/rbi/increase/models/account_retrieve_params.rbi b/rbi/increase/models/account_retrieve_params.rbi
index 9ae964eba..aff2f2c4f 100644
--- a/rbi/increase/models/account_retrieve_params.rbi
+++ b/rbi/increase/models/account_retrieve_params.rbi
@@ -6,7 +6,10 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(Increase::AccountRetrieveParams, Increase::Internal::AnyHash)
+        end
 
       sig do
         params(request_options: Increase::RequestOptions::OrHash).returns(
diff --git a/rbi/increase/models/account_statement.rbi b/rbi/increase/models/account_statement.rbi
index e0d4b0c67..3bc04645f 100644
--- a/rbi/increase/models/account_statement.rbi
+++ b/rbi/increase/models/account_statement.rbi
@@ -3,7 +3,10 @@
 module Increase
   module Models
     class AccountStatement < Increase::Internal::Type::BaseModel
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(Increase::AccountStatement, Increase::Internal::AnyHash)
+        end
 
       # The Account Statement identifier.
       sig { returns(String) }
diff --git a/rbi/increase/models/account_statement_list_params.rbi b/rbi/increase/models/account_statement_list_params.rbi
index db6f3cba0..85adad6ed 100644
--- a/rbi/increase/models/account_statement_list_params.rbi
+++ b/rbi/increase/models/account_statement_list_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::AccountStatementListParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       # Filter Account Statements to those belonging to the specified Account.
       sig { returns(T.nilable(String)) }
@@ -85,7 +91,12 @@ module Increase
 
       class StatementPeriodStart < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::AccountStatementListParams::StatementPeriodStart,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # Return results after this [ISO 8601](https://en.wikipedia.org/wiki/ISO_8601)
         # timestamp.
diff --git a/rbi/increase/models/account_statement_retrieve_params.rbi b/rbi/increase/models/account_statement_retrieve_params.rbi
index 1e98cab6b..e7ab1c825 100644
--- a/rbi/increase/models/account_statement_retrieve_params.rbi
+++ b/rbi/increase/models/account_statement_retrieve_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::AccountStatementRetrieveParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       sig do
         params(request_options: Increase::RequestOptions::OrHash).returns(
diff --git a/rbi/increase/models/account_transfer.rbi b/rbi/increase/models/account_transfer.rbi
index 6ed0b2660..0ee9de461 100644
--- a/rbi/increase/models/account_transfer.rbi
+++ b/rbi/increase/models/account_transfer.rbi
@@ -3,7 +3,10 @@
 module Increase
   module Models
     class AccountTransfer < Increase::Internal::Type::BaseModel
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(Increase::AccountTransfer, Increase::Internal::AnyHash)
+        end
 
       # The account transfer's identifier.
       sig { returns(String) }
@@ -206,7 +209,12 @@ module Increase
 
       class Approval < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::AccountTransfer::Approval,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # The [ISO 8601](https://en.wikipedia.org/wiki/ISO_8601) date and time at which
         # the transfer was approved.
@@ -246,7 +254,12 @@ module Increase
 
       class Cancellation < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::AccountTransfer::Cancellation,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # The [ISO 8601](https://en.wikipedia.org/wiki/ISO_8601) date and time at which
         # the Transfer was canceled.
@@ -286,7 +299,12 @@ module Increase
 
       class CreatedBy < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::AccountTransfer::CreatedBy,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # If present, details about the API key that created the transfer.
         sig { returns(T.nilable(Increase::AccountTransfer::CreatedBy::APIKey)) }
@@ -379,7 +397,12 @@ module Increase
 
         class APIKey < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::AccountTransfer::CreatedBy::APIKey,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # The description set for the API key when it was created.
           sig { returns(T.nilable(String)) }
@@ -444,7 +467,12 @@ module Increase
 
         class OAuthApplication < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::AccountTransfer::CreatedBy::OAuthApplication,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # The name of the OAuth Application.
           sig { returns(String) }
@@ -465,7 +493,12 @@ module Increase
 
         class User < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::AccountTransfer::CreatedBy::User,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # The email address of the User.
           sig { returns(String) }
diff --git a/rbi/increase/models/account_transfer_approve_params.rbi b/rbi/increase/models/account_transfer_approve_params.rbi
index d3f68deff..baf3e176c 100644
--- a/rbi/increase/models/account_transfer_approve_params.rbi
+++ b/rbi/increase/models/account_transfer_approve_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::AccountTransferApproveParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       sig do
         params(request_options: Increase::RequestOptions::OrHash).returns(
diff --git a/rbi/increase/models/account_transfer_cancel_params.rbi b/rbi/increase/models/account_transfer_cancel_params.rbi
index e04d5dbea..550c089d0 100644
--- a/rbi/increase/models/account_transfer_cancel_params.rbi
+++ b/rbi/increase/models/account_transfer_cancel_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::AccountTransferCancelParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       sig do
         params(request_options: Increase::RequestOptions::OrHash).returns(
diff --git a/rbi/increase/models/account_transfer_create_params.rbi b/rbi/increase/models/account_transfer_create_params.rbi
index b46630c69..663534d64 100644
--- a/rbi/increase/models/account_transfer_create_params.rbi
+++ b/rbi/increase/models/account_transfer_create_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::AccountTransferCreateParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       # The identifier for the account that will send the transfer.
       sig { returns(String) }
diff --git a/rbi/increase/models/account_transfer_list_params.rbi b/rbi/increase/models/account_transfer_list_params.rbi
index 28d822d85..47390b6ae 100644
--- a/rbi/increase/models/account_transfer_list_params.rbi
+++ b/rbi/increase/models/account_transfer_list_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::AccountTransferListParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       # Filter Account Transfers to those that originated from the specified Account.
       sig { returns(T.nilable(String)) }
@@ -95,7 +101,12 @@ module Increase
 
       class CreatedAt < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::AccountTransferListParams::CreatedAt,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # Return results after this [ISO 8601](https://en.wikipedia.org/wiki/ISO_8601)
         # timestamp.
diff --git a/rbi/increase/models/account_transfer_retrieve_params.rbi b/rbi/increase/models/account_transfer_retrieve_params.rbi
index 074e35521..e0776a224 100644
--- a/rbi/increase/models/account_transfer_retrieve_params.rbi
+++ b/rbi/increase/models/account_transfer_retrieve_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::AccountTransferRetrieveParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       sig do
         params(request_options: Increase::RequestOptions::OrHash).returns(
diff --git a/rbi/increase/models/account_update_params.rbi b/rbi/increase/models/account_update_params.rbi
index ee3a5483f..81cf5c0a8 100644
--- a/rbi/increase/models/account_update_params.rbi
+++ b/rbi/increase/models/account_update_params.rbi
@@ -6,7 +6,10 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(Increase::AccountUpdateParams, Increase::Internal::AnyHash)
+        end
 
       # The new name of the Account.
       sig { returns(T.nilable(String)) }
diff --git a/rbi/increase/models/ach_prenotification.rbi b/rbi/increase/models/ach_prenotification.rbi
index 813e0c0eb..ad6cf20c6 100644
--- a/rbi/increase/models/ach_prenotification.rbi
+++ b/rbi/increase/models/ach_prenotification.rbi
@@ -3,7 +3,10 @@
 module Increase
   module Models
     class ACHPrenotification < Increase::Internal::Type::BaseModel
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(Increase::ACHPrenotification, Increase::Internal::AnyHash)
+        end
 
       # The ACH Prenotification's identifier.
       sig { returns(String) }
@@ -233,7 +236,12 @@ module Increase
 
       class NotificationsOfChange < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::ACHPrenotification::NotificationsOfChange,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # The required type of change that is being signaled by the receiving financial
         # institution.
@@ -455,7 +463,12 @@ module Increase
 
       class PrenotificationReturn < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::ACHPrenotification::PrenotificationReturn,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # The [ISO 8601](https://en.wikipedia.org/wiki/ISO_8601) date and time at which
         # the Prenotification was returned.
diff --git a/rbi/increase/models/ach_prenotification_create_params.rbi b/rbi/increase/models/ach_prenotification_create_params.rbi
index c8b358aeb..efee750ca 100644
--- a/rbi/increase/models/ach_prenotification_create_params.rbi
+++ b/rbi/increase/models/ach_prenotification_create_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::ACHPrenotificationCreateParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       # The Increase identifier for the account that will send the transfer.
       sig { returns(String) }
diff --git a/rbi/increase/models/ach_prenotification_list_params.rbi b/rbi/increase/models/ach_prenotification_list_params.rbi
index aea94a3d0..21f977c9c 100644
--- a/rbi/increase/models/ach_prenotification_list_params.rbi
+++ b/rbi/increase/models/ach_prenotification_list_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::ACHPrenotificationListParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       sig do
         returns(T.nilable(Increase::ACHPrenotificationListParams::CreatedAt))
@@ -86,7 +92,12 @@ module Increase
 
       class CreatedAt < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::ACHPrenotificationListParams::CreatedAt,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # Return results after this [ISO 8601](https://en.wikipedia.org/wiki/ISO_8601)
         # timestamp.
diff --git a/rbi/increase/models/ach_prenotification_retrieve_params.rbi b/rbi/increase/models/ach_prenotification_retrieve_params.rbi
index 229048d0f..ee76f961f 100644
--- a/rbi/increase/models/ach_prenotification_retrieve_params.rbi
+++ b/rbi/increase/models/ach_prenotification_retrieve_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::ACHPrenotificationRetrieveParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       sig do
         params(request_options: Increase::RequestOptions::OrHash).returns(
diff --git a/rbi/increase/models/ach_transfer.rbi b/rbi/increase/models/ach_transfer.rbi
index 2287c149e..46af505a6 100644
--- a/rbi/increase/models/ach_transfer.rbi
+++ b/rbi/increase/models/ach_transfer.rbi
@@ -3,7 +3,10 @@
 module Increase
   module Models
     class ACHTransfer < Increase::Internal::Type::BaseModel
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(Increase::ACHTransfer, Increase::Internal::AnyHash)
+        end
 
       # The ACH transfer's identifier.
       sig { returns(String) }
@@ -450,7 +453,12 @@ module Increase
 
       class Acknowledgement < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::ACHTransfer::Acknowledgement,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # When the Federal Reserve acknowledged the submitted file containing this
         # transfer.
@@ -475,7 +483,9 @@ module Increase
 
       class Addenda < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(Increase::ACHTransfer::Addenda, Increase::Internal::AnyHash)
+          end
 
         # The type of the resource. We may add additional possible values for this enum
         # over time; your application should be able to handle such additions gracefully.
@@ -597,7 +607,12 @@ module Increase
 
         class Freeform < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::ACHTransfer::Addenda::Freeform,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # Each entry represents an addendum sent with the transfer.
           sig do
@@ -633,7 +648,12 @@ module Increase
 
           class Entry < Increase::Internal::Type::BaseModel
             OrHash =
-              T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+              T.type_alias do
+                T.any(
+                  Increase::ACHTransfer::Addenda::Freeform::Entry,
+                  Increase::Internal::AnyHash
+                )
+              end
 
             # The payment related information passed in the addendum.
             sig { returns(String) }
@@ -658,7 +678,12 @@ module Increase
 
         class PaymentOrderRemittanceAdvice < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::ACHTransfer::Addenda::PaymentOrderRemittanceAdvice,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # ASC X12 RMR records for this specific transfer.
           sig do
@@ -701,7 +726,12 @@ module Increase
 
           class Invoice < Increase::Internal::Type::BaseModel
             OrHash =
-              T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+              T.type_alias do
+                T.any(
+                  Increase::ACHTransfer::Addenda::PaymentOrderRemittanceAdvice::Invoice,
+                  Increase::Internal::AnyHash
+                )
+              end
 
             # The invoice number for this reference, determined in advance with the receiver.
             sig { returns(String) }
@@ -737,7 +767,9 @@ module Increase
 
       class Approval < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(Increase::ACHTransfer::Approval, Increase::Internal::AnyHash)
+          end
 
         # The [ISO 8601](https://en.wikipedia.org/wiki/ISO_8601) date and time at which
         # the transfer was approved.
@@ -777,7 +809,12 @@ module Increase
 
       class Cancellation < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::ACHTransfer::Cancellation,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # The [ISO 8601](https://en.wikipedia.org/wiki/ISO_8601) date and time at which
         # the Transfer was canceled.
@@ -817,7 +854,9 @@ module Increase
 
       class CreatedBy < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(Increase::ACHTransfer::CreatedBy, Increase::Internal::AnyHash)
+          end
 
         # If present, details about the API key that created the transfer.
         sig { returns(T.nilable(Increase::ACHTransfer::CreatedBy::APIKey)) }
@@ -905,7 +944,12 @@ module Increase
 
         class APIKey < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::ACHTransfer::CreatedBy::APIKey,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # The description set for the API key when it was created.
           sig { returns(T.nilable(String)) }
@@ -968,7 +1012,12 @@ module Increase
 
         class OAuthApplication < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::ACHTransfer::CreatedBy::OAuthApplication,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # The name of the OAuth Application.
           sig { returns(String) }
@@ -989,7 +1038,12 @@ module Increase
 
         class User < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::ACHTransfer::CreatedBy::User,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # The email address of the User.
           sig { returns(String) }
@@ -1114,7 +1168,12 @@ module Increase
 
       class InboundFundsHold < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::ACHTransfer::InboundFundsHold,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # The Inbound Funds Hold identifier.
         sig { returns(String) }
@@ -1385,7 +1444,12 @@ module Increase
 
       class NotificationsOfChange < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::ACHTransfer::NotificationsOfChange,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # The required type of change that is being signaled by the receiving financial
         # institution.
@@ -1607,7 +1671,12 @@ module Increase
 
       class PreferredEffectiveDate < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::ACHTransfer::PreferredEffectiveDate,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # A specific date in [ISO 8601](https://en.wikipedia.org/wiki/ISO_8601) format to
         # use as the effective date when submitting this transfer.
@@ -1704,7 +1773,9 @@ module Increase
 
       class Return < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(Increase::ACHTransfer::Return, Increase::Internal::AnyHash)
+          end
 
         # The [ISO 8601](https://en.wikipedia.org/wiki/ISO_8601) date and time at which
         # the transfer was created.
@@ -2301,7 +2372,12 @@ module Increase
 
       class Settlement < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::ACHTransfer::Settlement,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # When the funds for this transfer have settled at the destination bank at the
         # Federal Reserve.
@@ -2433,7 +2509,12 @@ module Increase
 
       class Submission < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::ACHTransfer::Submission,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # The ACH transfer's effective date as sent to the Federal Reserve. If a specific
         # date was configured using `preferred_effective_date`, this will match that
diff --git a/rbi/increase/models/ach_transfer_approve_params.rbi b/rbi/increase/models/ach_transfer_approve_params.rbi
index 7e92024a9..e55bf4f8a 100644
--- a/rbi/increase/models/ach_transfer_approve_params.rbi
+++ b/rbi/increase/models/ach_transfer_approve_params.rbi
@@ -6,7 +6,10 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(Increase::ACHTransferApproveParams, Increase::Internal::AnyHash)
+        end
 
       sig do
         params(request_options: Increase::RequestOptions::OrHash).returns(
diff --git a/rbi/increase/models/ach_transfer_cancel_params.rbi b/rbi/increase/models/ach_transfer_cancel_params.rbi
index 1311bb3b2..d09d6b282 100644
--- a/rbi/increase/models/ach_transfer_cancel_params.rbi
+++ b/rbi/increase/models/ach_transfer_cancel_params.rbi
@@ -6,7 +6,10 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(Increase::ACHTransferCancelParams, Increase::Internal::AnyHash)
+        end
 
       sig do
         params(request_options: Increase::RequestOptions::OrHash).returns(
diff --git a/rbi/increase/models/ach_transfer_create_params.rbi b/rbi/increase/models/ach_transfer_create_params.rbi
index 4b8bb43d5..bf8fdaf2c 100644
--- a/rbi/increase/models/ach_transfer_create_params.rbi
+++ b/rbi/increase/models/ach_transfer_create_params.rbi
@@ -6,7 +6,10 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(Increase::ACHTransferCreateParams, Increase::Internal::AnyHash)
+        end
 
       # The Increase identifier for the account that will send the transfer.
       sig { returns(String) }
@@ -326,7 +329,12 @@ module Increase
 
       class Addenda < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::ACHTransferCreateParams::Addenda,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # The type of addenda to pass with the transfer.
         sig do
@@ -448,7 +456,12 @@ module Increase
 
         class Freeform < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::ACHTransferCreateParams::Addenda::Freeform,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # Each entry represents an addendum sent with the transfer. Please reach out to
           # [support@increase.com](mailto:support@increase.com) to send more than one
@@ -494,7 +507,12 @@ module Increase
 
           class Entry < Increase::Internal::Type::BaseModel
             OrHash =
-              T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+              T.type_alias do
+                T.any(
+                  Increase::ACHTransferCreateParams::Addenda::Freeform::Entry,
+                  Increase::Internal::AnyHash
+                )
+              end
 
             # The payment related information passed in the addendum.
             sig { returns(String) }
@@ -519,7 +537,12 @@ module Increase
 
         class PaymentOrderRemittanceAdvice < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::ACHTransferCreateParams::Addenda::PaymentOrderRemittanceAdvice,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # ASC X12 RMR records for this specific transfer.
           sig do
@@ -562,7 +585,12 @@ module Increase
 
           class Invoice < Increase::Internal::Type::BaseModel
             OrHash =
-              T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+              T.type_alias do
+                T.any(
+                  Increase::ACHTransferCreateParams::Addenda::PaymentOrderRemittanceAdvice::Invoice,
+                  Increase::Internal::AnyHash
+                )
+              end
 
             # The invoice number for this reference, determined in advance with the receiver.
             sig { returns(String) }
@@ -677,7 +705,12 @@ module Increase
 
       class PreferredEffectiveDate < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::ACHTransferCreateParams::PreferredEffectiveDate,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # A specific date in [ISO 8601](https://en.wikipedia.org/wiki/ISO_8601) format to
         # use as the effective date when submitting this transfer.
diff --git a/rbi/increase/models/ach_transfer_list_params.rbi b/rbi/increase/models/ach_transfer_list_params.rbi
index 945e4411b..626db4157 100644
--- a/rbi/increase/models/ach_transfer_list_params.rbi
+++ b/rbi/increase/models/ach_transfer_list_params.rbi
@@ -6,7 +6,10 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(Increase::ACHTransferListParams, Increase::Internal::AnyHash)
+        end
 
       # Filter ACH Transfers to those that originated from the specified Account.
       sig { returns(T.nilable(String)) }
@@ -117,7 +120,12 @@ module Increase
 
       class CreatedAt < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::ACHTransferListParams::CreatedAt,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # Return results after this [ISO 8601](https://en.wikipedia.org/wiki/ISO_8601)
         # timestamp.
@@ -186,7 +194,12 @@ module Increase
 
       class Status < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::ACHTransferListParams::Status,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # Return results whose value is in the provided list. For GET requests, this
         # should be encoded as a comma-delimited string, such as `?in=one,two,three`.
diff --git a/rbi/increase/models/ach_transfer_retrieve_params.rbi b/rbi/increase/models/ach_transfer_retrieve_params.rbi
index 42e6a08f0..e583f3050 100644
--- a/rbi/increase/models/ach_transfer_retrieve_params.rbi
+++ b/rbi/increase/models/ach_transfer_retrieve_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::ACHTransferRetrieveParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       sig do
         params(request_options: Increase::RequestOptions::OrHash).returns(
diff --git a/rbi/increase/models/balance_lookup.rbi b/rbi/increase/models/balance_lookup.rbi
index cf92337f8..340460673 100644
--- a/rbi/increase/models/balance_lookup.rbi
+++ b/rbi/increase/models/balance_lookup.rbi
@@ -3,7 +3,10 @@
 module Increase
   module Models
     class BalanceLookup < Increase::Internal::Type::BaseModel
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(Increase::BalanceLookup, Increase::Internal::AnyHash)
+        end
 
       # The identifier for the account for which the balance was queried.
       sig { returns(String) }
diff --git a/rbi/increase/models/bookkeeping_account.rbi b/rbi/increase/models/bookkeeping_account.rbi
index ae05efc8e..6f668619a 100644
--- a/rbi/increase/models/bookkeeping_account.rbi
+++ b/rbi/increase/models/bookkeeping_account.rbi
@@ -3,7 +3,10 @@
 module Increase
   module Models
     class BookkeepingAccount < Increase::Internal::Type::BaseModel
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(Increase::BookkeepingAccount, Increase::Internal::AnyHash)
+        end
 
       # The account identifier.
       sig { returns(String) }
diff --git a/rbi/increase/models/bookkeeping_account_balance_params.rbi b/rbi/increase/models/bookkeeping_account_balance_params.rbi
index ac4ee590c..8a99fb892 100644
--- a/rbi/increase/models/bookkeeping_account_balance_params.rbi
+++ b/rbi/increase/models/bookkeeping_account_balance_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::BookkeepingAccountBalanceParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       # The moment to query the balance at. If not set, returns the current balances.
       sig { returns(T.nilable(Time)) }
diff --git a/rbi/increase/models/bookkeeping_account_create_params.rbi b/rbi/increase/models/bookkeeping_account_create_params.rbi
index 6da62096a..4b683b7ca 100644
--- a/rbi/increase/models/bookkeeping_account_create_params.rbi
+++ b/rbi/increase/models/bookkeeping_account_create_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::BookkeepingAccountCreateParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       # The name you choose for the account.
       sig { returns(String) }
diff --git a/rbi/increase/models/bookkeeping_account_list_params.rbi b/rbi/increase/models/bookkeeping_account_list_params.rbi
index 283652321..fde24774b 100644
--- a/rbi/increase/models/bookkeeping_account_list_params.rbi
+++ b/rbi/increase/models/bookkeeping_account_list_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::BookkeepingAccountListParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       # Return the page of entries after this one.
       sig { returns(T.nilable(String)) }
diff --git a/rbi/increase/models/bookkeeping_account_update_params.rbi b/rbi/increase/models/bookkeeping_account_update_params.rbi
index 1c7b8c07e..ee8642a7e 100644
--- a/rbi/increase/models/bookkeeping_account_update_params.rbi
+++ b/rbi/increase/models/bookkeeping_account_update_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::BookkeepingAccountUpdateParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       # The name you choose for the account.
       sig { returns(String) }
diff --git a/rbi/increase/models/bookkeeping_balance_lookup.rbi b/rbi/increase/models/bookkeeping_balance_lookup.rbi
index 6369aaf4d..93f41714d 100644
--- a/rbi/increase/models/bookkeeping_balance_lookup.rbi
+++ b/rbi/increase/models/bookkeeping_balance_lookup.rbi
@@ -3,7 +3,10 @@
 module Increase
   module Models
     class BookkeepingBalanceLookup < Increase::Internal::Type::BaseModel
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(Increase::BookkeepingBalanceLookup, Increase::Internal::AnyHash)
+        end
 
       # The Bookkeeping Account's current balance, representing the sum of all
       # Bookkeeping Entries on the Bookkeeping Account.
diff --git a/rbi/increase/models/bookkeeping_entry.rbi b/rbi/increase/models/bookkeeping_entry.rbi
index 42b8b67c6..304e284cd 100644
--- a/rbi/increase/models/bookkeeping_entry.rbi
+++ b/rbi/increase/models/bookkeeping_entry.rbi
@@ -3,7 +3,10 @@
 module Increase
   module Models
     class BookkeepingEntry < Increase::Internal::Type::BaseModel
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(Increase::BookkeepingEntry, Increase::Internal::AnyHash)
+        end
 
       # The entry identifier.
       sig { returns(String) }
diff --git a/rbi/increase/models/bookkeeping_entry_list_params.rbi b/rbi/increase/models/bookkeeping_entry_list_params.rbi
index e28d14f52..75d8191ef 100644
--- a/rbi/increase/models/bookkeeping_entry_list_params.rbi
+++ b/rbi/increase/models/bookkeeping_entry_list_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::BookkeepingEntryListParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       # The identifier for the Bookkeeping Account to filter by.
       sig { returns(T.nilable(String)) }
diff --git a/rbi/increase/models/bookkeeping_entry_retrieve_params.rbi b/rbi/increase/models/bookkeeping_entry_retrieve_params.rbi
index a4d8f59a0..2a1c4e16a 100644
--- a/rbi/increase/models/bookkeeping_entry_retrieve_params.rbi
+++ b/rbi/increase/models/bookkeeping_entry_retrieve_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::BookkeepingEntryRetrieveParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       sig do
         params(request_options: Increase::RequestOptions::OrHash).returns(
diff --git a/rbi/increase/models/bookkeeping_entry_set.rbi b/rbi/increase/models/bookkeeping_entry_set.rbi
index 5763139f9..dadec6d10 100644
--- a/rbi/increase/models/bookkeeping_entry_set.rbi
+++ b/rbi/increase/models/bookkeeping_entry_set.rbi
@@ -3,7 +3,10 @@
 module Increase
   module Models
     class BookkeepingEntrySet < Increase::Internal::Type::BaseModel
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(Increase::BookkeepingEntrySet, Increase::Internal::AnyHash)
+        end
 
       # The entry set identifier.
       sig { returns(String) }
@@ -90,7 +93,12 @@ module Increase
 
       class Entry < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::BookkeepingEntrySet::Entry,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # The entry identifier.
         sig { returns(String) }
diff --git a/rbi/increase/models/bookkeeping_entry_set_create_params.rbi b/rbi/increase/models/bookkeeping_entry_set_create_params.rbi
index 245f347a7..e3fd7540f 100644
--- a/rbi/increase/models/bookkeeping_entry_set_create_params.rbi
+++ b/rbi/increase/models/bookkeeping_entry_set_create_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::BookkeepingEntrySetCreateParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       # The bookkeeping entries.
       sig do
@@ -65,7 +71,12 @@ module Increase
 
       class Entry < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::BookkeepingEntrySetCreateParams::Entry,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # The identifier for the Bookkeeping Account impacted by this entry.
         sig { returns(String) }
diff --git a/rbi/increase/models/bookkeeping_entry_set_list_params.rbi b/rbi/increase/models/bookkeeping_entry_set_list_params.rbi
index e0ced98d5..0ea27957f 100644
--- a/rbi/increase/models/bookkeeping_entry_set_list_params.rbi
+++ b/rbi/increase/models/bookkeeping_entry_set_list_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::BookkeepingEntrySetListParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       # Return the page of entries after this one.
       sig { returns(T.nilable(String)) }
diff --git a/rbi/increase/models/bookkeeping_entry_set_retrieve_params.rbi b/rbi/increase/models/bookkeeping_entry_set_retrieve_params.rbi
index 0e9251a49..442fbfb5f 100644
--- a/rbi/increase/models/bookkeeping_entry_set_retrieve_params.rbi
+++ b/rbi/increase/models/bookkeeping_entry_set_retrieve_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::BookkeepingEntrySetRetrieveParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       sig do
         params(request_options: Increase::RequestOptions::OrHash).returns(
diff --git a/rbi/increase/models/card.rbi b/rbi/increase/models/card.rbi
index faea3cf9c..7c67f5c8c 100644
--- a/rbi/increase/models/card.rbi
+++ b/rbi/increase/models/card.rbi
@@ -3,7 +3,8 @@
 module Increase
   module Models
     class Card < Increase::Internal::Type::BaseModel
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias { T.any(Increase::Card, Increase::Internal::AnyHash) }
 
       # The card identifier.
       sig { returns(String) }
@@ -156,7 +157,9 @@ module Increase
 
       class BillingAddress < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(Increase::Card::BillingAddress, Increase::Internal::AnyHash)
+          end
 
         # The city of the billing address.
         sig { returns(T.nilable(String)) }
@@ -219,7 +222,9 @@ module Increase
 
       class DigitalWallet < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(Increase::Card::DigitalWallet, Increase::Internal::AnyHash)
+          end
 
         # The digital card profile assigned to this digital card. Card profiles may also
         # be assigned at the program level.
diff --git a/rbi/increase/models/card_create_params.rbi b/rbi/increase/models/card_create_params.rbi
index 9d0ee9850..e3d839061 100644
--- a/rbi/increase/models/card_create_params.rbi
+++ b/rbi/increase/models/card_create_params.rbi
@@ -6,7 +6,10 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(Increase::CardCreateParams, Increase::Internal::AnyHash)
+        end
 
       # The Account the card should belong to.
       sig { returns(String) }
@@ -100,7 +103,12 @@ module Increase
 
       class BillingAddress < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::CardCreateParams::BillingAddress,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # The city of the billing address.
         sig { returns(String) }
@@ -166,7 +174,12 @@ module Increase
 
       class DigitalWallet < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::CardCreateParams::DigitalWallet,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # The digital card profile assigned to this digital card.
         sig { returns(T.nilable(String)) }
diff --git a/rbi/increase/models/card_details.rbi b/rbi/increase/models/card_details.rbi
index e3fc4f210..93246d12e 100644
--- a/rbi/increase/models/card_details.rbi
+++ b/rbi/increase/models/card_details.rbi
@@ -3,7 +3,10 @@
 module Increase
   module Models
     class CardDetails < Increase::Internal::Type::BaseModel
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(Increase::CardDetails, Increase::Internal::AnyHash)
+        end
 
       # The identifier for the Card for which sensitive details have been returned.
       sig { returns(String) }
diff --git a/rbi/increase/models/card_details_params.rbi b/rbi/increase/models/card_details_params.rbi
index 4f07f7acd..079e961b6 100644
--- a/rbi/increase/models/card_details_params.rbi
+++ b/rbi/increase/models/card_details_params.rbi
@@ -6,7 +6,10 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(Increase::CardDetailsParams, Increase::Internal::AnyHash)
+        end
 
       sig do
         params(request_options: Increase::RequestOptions::OrHash).returns(
diff --git a/rbi/increase/models/card_dispute.rbi b/rbi/increase/models/card_dispute.rbi
index 8b7ad1eb3..44bec2e02 100644
--- a/rbi/increase/models/card_dispute.rbi
+++ b/rbi/increase/models/card_dispute.rbi
@@ -3,7 +3,10 @@
 module Increase
   module Models
     class CardDispute < Increase::Internal::Type::BaseModel
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(Increase::CardDispute, Increase::Internal::AnyHash)
+        end
 
       # The Card Dispute identifier.
       sig { returns(String) }
@@ -158,7 +161,12 @@ module Increase
 
       class Acceptance < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::CardDispute::Acceptance,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # The [ISO 8601](https://en.wikipedia.org/wiki/ISO_8601) date and time at which
         # the Card Dispute was accepted.
@@ -210,7 +218,9 @@ module Increase
 
       class Loss < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(Increase::CardDispute::Loss, Increase::Internal::AnyHash)
+          end
 
         # The identifier of the Card Dispute that was lost.
         sig { returns(String) }
@@ -270,7 +280,9 @@ module Increase
 
       class Rejection < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(Increase::CardDispute::Rejection, Increase::Internal::AnyHash)
+          end
 
         # The identifier of the Card Dispute that was rejected.
         sig { returns(String) }
@@ -375,7 +387,9 @@ module Increase
 
       class Win < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(Increase::CardDispute::Win, Increase::Internal::AnyHash)
+          end
 
         # The identifier of the Card Dispute that was won.
         sig { returns(String) }
diff --git a/rbi/increase/models/card_dispute_create_params.rbi b/rbi/increase/models/card_dispute_create_params.rbi
index 9eb4bcf64..3277c91a8 100644
--- a/rbi/increase/models/card_dispute_create_params.rbi
+++ b/rbi/increase/models/card_dispute_create_params.rbi
@@ -6,7 +6,10 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(Increase::CardDisputeCreateParams, Increase::Internal::AnyHash)
+        end
 
       # The Transaction you wish to dispute. This Transaction must have a `source_type`
       # of `card_settlement`.
diff --git a/rbi/increase/models/card_dispute_list_params.rbi b/rbi/increase/models/card_dispute_list_params.rbi
index 28a930631..43e29c840 100644
--- a/rbi/increase/models/card_dispute_list_params.rbi
+++ b/rbi/increase/models/card_dispute_list_params.rbi
@@ -6,7 +6,10 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(Increase::CardDisputeListParams, Increase::Internal::AnyHash)
+        end
 
       sig { returns(T.nilable(Increase::CardDisputeListParams::CreatedAt)) }
       attr_reader :created_at
@@ -95,7 +98,12 @@ module Increase
 
       class CreatedAt < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::CardDisputeListParams::CreatedAt,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # Return results after this [ISO 8601](https://en.wikipedia.org/wiki/ISO_8601)
         # timestamp.
@@ -164,7 +172,12 @@ module Increase
 
       class Status < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::CardDisputeListParams::Status,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # Filter Card Disputes for those with the specified status or statuses. For GET
         # requests, this should be encoded as a comma-delimited string, such as
diff --git a/rbi/increase/models/card_dispute_retrieve_params.rbi b/rbi/increase/models/card_dispute_retrieve_params.rbi
index 00882a95e..c7976504c 100644
--- a/rbi/increase/models/card_dispute_retrieve_params.rbi
+++ b/rbi/increase/models/card_dispute_retrieve_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::CardDisputeRetrieveParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       sig do
         params(request_options: Increase::RequestOptions::OrHash).returns(
diff --git a/rbi/increase/models/card_list_params.rbi b/rbi/increase/models/card_list_params.rbi
index a42194d9a..63553e7e9 100644
--- a/rbi/increase/models/card_list_params.rbi
+++ b/rbi/increase/models/card_list_params.rbi
@@ -6,7 +6,10 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(Increase::CardListParams, Increase::Internal::AnyHash)
+        end
 
       # Filter Cards to ones belonging to the specified Account.
       sig { returns(T.nilable(String)) }
@@ -102,7 +105,12 @@ module Increase
 
       class CreatedAt < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::CardListParams::CreatedAt,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # Return results after this [ISO 8601](https://en.wikipedia.org/wiki/ISO_8601)
         # timestamp.
@@ -171,7 +179,9 @@ module Increase
 
       class Status < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(Increase::CardListParams::Status, Increase::Internal::AnyHash)
+          end
 
         # Filter Cards by status. For GET requests, this should be encoded as a
         # comma-delimited string, such as `?in=one,two,three`.
diff --git a/rbi/increase/models/card_payment.rbi b/rbi/increase/models/card_payment.rbi
index fa9569aa4..b9bc96777 100644
--- a/rbi/increase/models/card_payment.rbi
+++ b/rbi/increase/models/card_payment.rbi
@@ -3,7 +3,10 @@
 module Increase
   module Models
     class CardPayment < Increase::Internal::Type::BaseModel
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(Increase::CardPayment, Increase::Internal::AnyHash)
+        end
 
       # The Card Payment identifier.
       sig { returns(String) }
@@ -105,7 +108,9 @@ module Increase
 
       class Element < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(Increase::CardPayment::Element, Increase::Internal::AnyHash)
+          end
 
         # A Card Authentication object. This field will be present in the JSON response if
         # and only if `category` is equal to `card_authentication`. Card Authentications
@@ -428,7 +433,12 @@ module Increase
 
         class CardAuthentication < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::CardPayment::Element::CardAuthentication,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # The Card Authentication identifier.
           sig { returns(String) }
@@ -708,7 +718,12 @@ module Increase
 
           class Challenge < Increase::Internal::Type::BaseModel
             OrHash =
-              T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+              T.type_alias do
+                T.any(
+                  Increase::CardPayment::Element::CardAuthentication::Challenge,
+                  Increase::Internal::AnyHash
+                )
+              end
 
             # Details about the challenge verification attempts, if any happened.
             sig do
@@ -792,7 +807,12 @@ module Increase
 
             class Attempt < Increase::Internal::Type::BaseModel
               OrHash =
-                T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+                T.type_alias do
+                  T.any(
+                    Increase::CardPayment::Element::CardAuthentication::Challenge::Attempt,
+                    Increase::Internal::AnyHash
+                  )
+                end
 
               # The [ISO 8601](https://en.wikipedia.org/wiki/ISO_8601) time of the Card
               # Authentication Challenge Attempt.
@@ -1152,7 +1172,12 @@ module Increase
 
         class CardAuthorization < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::CardPayment::Element::CardAuthorization,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # The Card Authorization identifier.
           sig { returns(String) }
@@ -1649,7 +1674,12 @@ module Increase
 
           class NetworkDetails < Increase::Internal::Type::BaseModel
             OrHash =
-              T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+              T.type_alias do
+                T.any(
+                  Increase::CardPayment::Element::CardAuthorization::NetworkDetails,
+                  Increase::Internal::AnyHash
+                )
+              end
 
             # The payment network used to process this card authorization.
             sig do
@@ -1746,7 +1776,12 @@ module Increase
 
             class Visa < Increase::Internal::Type::BaseModel
               OrHash =
-                T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+                T.type_alias do
+                  T.any(
+                    Increase::CardPayment::Element::CardAuthorization::NetworkDetails::Visa,
+                    Increase::Internal::AnyHash
+                  )
+                end
 
               # For electronic commerce transactions, this identifies the level of security used
               # in obtaining the customer's payment credential. For mail or telephone order
@@ -2089,7 +2124,12 @@ module Increase
 
           class NetworkIdentifiers < Increase::Internal::Type::BaseModel
             OrHash =
-              T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+              T.type_alias do
+                T.any(
+                  Increase::CardPayment::Element::CardAuthorization::NetworkIdentifiers,
+                  Increase::Internal::AnyHash
+                )
+              end
 
             # A life-cycle identifier used across e.g., an authorization and a reversal.
             # Expected to be unique per acquirer within a window of time. For some card
@@ -2242,7 +2282,12 @@ module Increase
 
           class Verification < Increase::Internal::Type::BaseModel
             OrHash =
-              T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+              T.type_alias do
+                T.any(
+                  Increase::CardPayment::Element::CardAuthorization::Verification,
+                  Increase::Internal::AnyHash
+                )
+              end
 
             # Fields related to verification of the Card Verification Code, a 3-digit code on
             # the back of the card.
@@ -2312,7 +2357,12 @@ module Increase
 
             class CardVerificationCode < Increase::Internal::Type::BaseModel
               OrHash =
-                T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+                T.type_alias do
+                  T.any(
+                    Increase::CardPayment::Element::CardAuthorization::Verification::CardVerificationCode,
+                    Increase::Internal::AnyHash
+                  )
+                end
 
               # The result of verifying the Card Verification Code.
               sig do
@@ -2395,7 +2445,12 @@ module Increase
 
             class CardholderAddress < Increase::Internal::Type::BaseModel
               OrHash =
-                T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+                T.type_alias do
+                  T.any(
+                    Increase::CardPayment::Element::CardAuthorization::Verification::CardholderAddress,
+                    Increase::Internal::AnyHash
+                  )
+                end
 
               # Line 1 of the address on file for the cardholder.
               sig { returns(T.nilable(String)) }
@@ -2535,7 +2590,12 @@ module Increase
 
         class CardAuthorizationExpiration < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::CardPayment::Element::CardAuthorizationExpiration,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # The Card Authorization Expiration identifier.
           sig { returns(String) }
@@ -2762,7 +2822,12 @@ module Increase
 
         class CardDecline < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::CardPayment::Element::CardDecline,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # The Card Decline identifier.
           sig { returns(String) }
@@ -3263,7 +3328,12 @@ module Increase
 
           class NetworkDetails < Increase::Internal::Type::BaseModel
             OrHash =
-              T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+              T.type_alias do
+                T.any(
+                  Increase::CardPayment::Element::CardDecline::NetworkDetails,
+                  Increase::Internal::AnyHash
+                )
+              end
 
             # The payment network used to process this card authorization.
             sig do
@@ -3360,7 +3430,12 @@ module Increase
 
             class Visa < Increase::Internal::Type::BaseModel
               OrHash =
-                T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+                T.type_alias do
+                  T.any(
+                    Increase::CardPayment::Element::CardDecline::NetworkDetails::Visa,
+                    Increase::Internal::AnyHash
+                  )
+                end
 
               # For electronic commerce transactions, this identifies the level of security used
               # in obtaining the customer's payment credential. For mail or telephone order
@@ -3703,7 +3778,12 @@ module Increase
 
           class NetworkIdentifiers < Increase::Internal::Type::BaseModel
             OrHash =
-              T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+              T.type_alias do
+                T.any(
+                  Increase::CardPayment::Element::CardDecline::NetworkIdentifiers,
+                  Increase::Internal::AnyHash
+                )
+              end
 
             # A life-cycle identifier used across e.g., an authorization and a reversal.
             # Expected to be unique per acquirer within a window of time. For some card
@@ -4042,7 +4122,12 @@ module Increase
 
           class Verification < Increase::Internal::Type::BaseModel
             OrHash =
-              T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+              T.type_alias do
+                T.any(
+                  Increase::CardPayment::Element::CardDecline::Verification,
+                  Increase::Internal::AnyHash
+                )
+              end
 
             # Fields related to verification of the Card Verification Code, a 3-digit code on
             # the back of the card.
@@ -4112,7 +4197,12 @@ module Increase
 
             class CardVerificationCode < Increase::Internal::Type::BaseModel
               OrHash =
-                T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+                T.type_alias do
+                  T.any(
+                    Increase::CardPayment::Element::CardDecline::Verification::CardVerificationCode,
+                    Increase::Internal::AnyHash
+                  )
+                end
 
               # The result of verifying the Card Verification Code.
               sig do
@@ -4195,7 +4285,12 @@ module Increase
 
             class CardholderAddress < Increase::Internal::Type::BaseModel
               OrHash =
-                T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+                T.type_alias do
+                  T.any(
+                    Increase::CardPayment::Element::CardDecline::Verification::CardholderAddress,
+                    Increase::Internal::AnyHash
+                  )
+                end
 
               # Line 1 of the address on file for the cardholder.
               sig { returns(T.nilable(String)) }
@@ -4335,7 +4430,12 @@ module Increase
 
         class CardFuelConfirmation < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::CardPayment::Element::CardFuelConfirmation,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # The Card Fuel Confirmation identifier.
           sig { returns(String) }
@@ -4562,7 +4662,12 @@ module Increase
 
           class NetworkIdentifiers < Increase::Internal::Type::BaseModel
             OrHash =
-              T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+              T.type_alias do
+                T.any(
+                  Increase::CardPayment::Element::CardFuelConfirmation::NetworkIdentifiers,
+                  Increase::Internal::AnyHash
+                )
+              end
 
             # A life-cycle identifier used across e.g., an authorization and a reversal.
             # Expected to be unique per acquirer within a window of time. For some card
@@ -4649,7 +4754,12 @@ module Increase
 
         class CardIncrement < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::CardPayment::Element::CardIncrement,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # The Card Increment identifier.
           sig { returns(String) }
@@ -4965,7 +5075,12 @@ module Increase
 
           class NetworkIdentifiers < Increase::Internal::Type::BaseModel
             OrHash =
-              T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+              T.type_alias do
+                T.any(
+                  Increase::CardPayment::Element::CardIncrement::NetworkIdentifiers,
+                  Increase::Internal::AnyHash
+                )
+              end
 
             # A life-cycle identifier used across e.g., an authorization and a reversal.
             # Expected to be unique per acquirer within a window of time. For some card
@@ -5052,7 +5167,12 @@ module Increase
 
         class CardRefund < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::CardPayment::Element::CardRefund,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # The Card Refund identifier.
           sig { returns(String) }
@@ -5331,7 +5451,12 @@ module Increase
 
           class Cashback < Increase::Internal::Type::BaseModel
             OrHash =
-              T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+              T.type_alias do
+                T.any(
+                  Increase::CardPayment::Element::CardRefund::Cashback,
+                  Increase::Internal::AnyHash
+                )
+              end
 
             # The cashback amount given as a string containing a decimal number. The amount is
             # a positive number if it will be credited to you (e.g., settlements) and a
@@ -5514,7 +5639,12 @@ module Increase
 
           class Interchange < Increase::Internal::Type::BaseModel
             OrHash =
-              T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+              T.type_alias do
+                T.any(
+                  Increase::CardPayment::Element::CardRefund::Interchange,
+                  Increase::Internal::AnyHash
+                )
+              end
 
             # The interchange amount given as a string containing a decimal number in major
             # units (so e.g., "3.14" for $3.14). The amount is a positive number if it is
@@ -5642,7 +5772,12 @@ module Increase
 
           class NetworkIdentifiers < Increase::Internal::Type::BaseModel
             OrHash =
-              T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+              T.type_alias do
+                T.any(
+                  Increase::CardPayment::Element::CardRefund::NetworkIdentifiers,
+                  Increase::Internal::AnyHash
+                )
+              end
 
             # A network assigned business ID that identifies the acquirer that processed this
             # transaction.
@@ -5693,7 +5828,12 @@ module Increase
 
           class PurchaseDetails < Increase::Internal::Type::BaseModel
             OrHash =
-              T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+              T.type_alias do
+                T.any(
+                  Increase::CardPayment::Element::CardRefund::PurchaseDetails,
+                  Increase::Internal::AnyHash
+                )
+              end
 
             # Fields specific to car rentals.
             sig do
@@ -5878,7 +6018,12 @@ module Increase
 
             class CarRental < Increase::Internal::Type::BaseModel
               OrHash =
-                T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+                T.type_alias do
+                  T.any(
+                    Increase::CardPayment::Element::CardRefund::PurchaseDetails::CarRental,
+                    Increase::Internal::AnyHash
+                  )
+                end
 
               # Code indicating the vehicle's class.
               sig { returns(T.nilable(String)) }
@@ -6174,7 +6319,12 @@ module Increase
 
             class Lodging < Increase::Internal::Type::BaseModel
               OrHash =
-                T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+                T.type_alias do
+                  T.any(
+                    Increase::CardPayment::Element::CardRefund::PurchaseDetails::Lodging,
+                    Increase::Internal::AnyHash
+                  )
+                end
 
               # Date the customer checked in.
               sig { returns(T.nilable(Date)) }
@@ -6534,7 +6684,12 @@ module Increase
 
             class Travel < Increase::Internal::Type::BaseModel
               OrHash =
-                T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+                T.type_alias do
+                  T.any(
+                    Increase::CardPayment::Element::CardRefund::PurchaseDetails::Travel,
+                    Increase::Internal::AnyHash
+                  )
+                end
 
               # Ancillary purchases in addition to the airfare.
               sig do
@@ -6729,7 +6884,10 @@ module Increase
               class Ancillary < Increase::Internal::Type::BaseModel
                 OrHash =
                   T.type_alias do
-                    T.any(T.self_type, Increase::Internal::AnyHash)
+                    T.any(
+                      Increase::CardPayment::Element::CardRefund::PurchaseDetails::Travel::Ancillary,
+                      Increase::Internal::AnyHash
+                    )
                   end
 
                 # If this purchase has a connection or relationship to another purchase, such as a
@@ -6873,7 +7031,10 @@ module Increase
                 class Service < Increase::Internal::Type::BaseModel
                   OrHash =
                     T.type_alias do
-                      T.any(T.self_type, Increase::Internal::AnyHash)
+                      T.any(
+                        Increase::CardPayment::Element::CardRefund::PurchaseDetails::Travel::Ancillary::Service,
+                        Increase::Internal::AnyHash
+                      )
                     end
 
                   # Category of the ancillary service.
@@ -7267,7 +7428,10 @@ module Increase
               class TripLeg < Increase::Internal::Type::BaseModel
                 OrHash =
                   T.type_alias do
-                    T.any(T.self_type, Increase::Internal::AnyHash)
+                    T.any(
+                      Increase::CardPayment::Element::CardRefund::PurchaseDetails::Travel::TripLeg,
+                      Increase::Internal::AnyHash
+                    )
                   end
 
                 # Carrier code (e.g., United Airlines, Jet Blue, etc.).
@@ -7426,7 +7590,12 @@ module Increase
 
         class CardReversal < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::CardPayment::Element::CardReversal,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # The Card Reversal identifier.
           sig { returns(String) }
@@ -7752,7 +7921,12 @@ module Increase
 
           class NetworkIdentifiers < Increase::Internal::Type::BaseModel
             OrHash =
-              T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+              T.type_alias do
+                T.any(
+                  Increase::CardPayment::Element::CardReversal::NetworkIdentifiers,
+                  Increase::Internal::AnyHash
+                )
+              end
 
             # A life-cycle identifier used across e.g., an authorization and a reversal.
             # Expected to be unique per acquirer within a window of time. For some card
@@ -7891,7 +8065,12 @@ module Increase
 
         class CardSettlement < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::CardPayment::Element::CardSettlement,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # The Card Settlement identifier.
           sig { returns(String) }
@@ -8193,7 +8372,12 @@ module Increase
 
           class Cashback < Increase::Internal::Type::BaseModel
             OrHash =
-              T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+              T.type_alias do
+                T.any(
+                  Increase::CardPayment::Element::CardSettlement::Cashback,
+                  Increase::Internal::AnyHash
+                )
+              end
 
             # The cashback amount given as a string containing a decimal number. The amount is
             # a positive number if it will be credited to you (e.g., settlements) and a
@@ -8376,7 +8560,12 @@ module Increase
 
           class Interchange < Increase::Internal::Type::BaseModel
             OrHash =
-              T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+              T.type_alias do
+                T.any(
+                  Increase::CardPayment::Element::CardSettlement::Interchange,
+                  Increase::Internal::AnyHash
+                )
+              end
 
             # The interchange amount given as a string containing a decimal number in major
             # units (so e.g., "3.14" for $3.14). The amount is a positive number if it is
@@ -8504,7 +8693,12 @@ module Increase
 
           class NetworkIdentifiers < Increase::Internal::Type::BaseModel
             OrHash =
-              T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+              T.type_alias do
+                T.any(
+                  Increase::CardPayment::Element::CardSettlement::NetworkIdentifiers,
+                  Increase::Internal::AnyHash
+                )
+              end
 
             # A network assigned business ID that identifies the acquirer that processed this
             # transaction.
@@ -8555,7 +8749,12 @@ module Increase
 
           class PurchaseDetails < Increase::Internal::Type::BaseModel
             OrHash =
-              T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+              T.type_alias do
+                T.any(
+                  Increase::CardPayment::Element::CardSettlement::PurchaseDetails,
+                  Increase::Internal::AnyHash
+                )
+              end
 
             # Fields specific to car rentals.
             sig do
@@ -8740,7 +8939,12 @@ module Increase
 
             class CarRental < Increase::Internal::Type::BaseModel
               OrHash =
-                T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+                T.type_alias do
+                  T.any(
+                    Increase::CardPayment::Element::CardSettlement::PurchaseDetails::CarRental,
+                    Increase::Internal::AnyHash
+                  )
+                end
 
               # Code indicating the vehicle's class.
               sig { returns(T.nilable(String)) }
@@ -9036,7 +9240,12 @@ module Increase
 
             class Lodging < Increase::Internal::Type::BaseModel
               OrHash =
-                T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+                T.type_alias do
+                  T.any(
+                    Increase::CardPayment::Element::CardSettlement::PurchaseDetails::Lodging,
+                    Increase::Internal::AnyHash
+                  )
+                end
 
               # Date the customer checked in.
               sig { returns(T.nilable(Date)) }
@@ -9396,7 +9605,12 @@ module Increase
 
             class Travel < Increase::Internal::Type::BaseModel
               OrHash =
-                T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+                T.type_alias do
+                  T.any(
+                    Increase::CardPayment::Element::CardSettlement::PurchaseDetails::Travel,
+                    Increase::Internal::AnyHash
+                  )
+                end
 
               # Ancillary purchases in addition to the airfare.
               sig do
@@ -9591,7 +9805,10 @@ module Increase
               class Ancillary < Increase::Internal::Type::BaseModel
                 OrHash =
                   T.type_alias do
-                    T.any(T.self_type, Increase::Internal::AnyHash)
+                    T.any(
+                      Increase::CardPayment::Element::CardSettlement::PurchaseDetails::Travel::Ancillary,
+                      Increase::Internal::AnyHash
+                    )
                   end
 
                 # If this purchase has a connection or relationship to another purchase, such as a
@@ -9735,7 +9952,10 @@ module Increase
                 class Service < Increase::Internal::Type::BaseModel
                   OrHash =
                     T.type_alias do
-                      T.any(T.self_type, Increase::Internal::AnyHash)
+                      T.any(
+                        Increase::CardPayment::Element::CardSettlement::PurchaseDetails::Travel::Ancillary::Service,
+                        Increase::Internal::AnyHash
+                      )
                     end
 
                   # Category of the ancillary service.
@@ -10129,7 +10349,10 @@ module Increase
               class TripLeg < Increase::Internal::Type::BaseModel
                 OrHash =
                   T.type_alias do
-                    T.any(T.self_type, Increase::Internal::AnyHash)
+                    T.any(
+                      Increase::CardPayment::Element::CardSettlement::PurchaseDetails::Travel::TripLeg,
+                      Increase::Internal::AnyHash
+                    )
                   end
 
                 # Carrier code (e.g., United Airlines, Jet Blue, etc.).
@@ -10291,7 +10514,12 @@ module Increase
 
         class CardValidation < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::CardPayment::Element::CardValidation,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # The Card Validation identifier.
           sig { returns(String) }
@@ -10671,7 +10899,12 @@ module Increase
 
           class NetworkDetails < Increase::Internal::Type::BaseModel
             OrHash =
-              T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+              T.type_alias do
+                T.any(
+                  Increase::CardPayment::Element::CardValidation::NetworkDetails,
+                  Increase::Internal::AnyHash
+                )
+              end
 
             # The payment network used to process this card authorization.
             sig do
@@ -10768,7 +11001,12 @@ module Increase
 
             class Visa < Increase::Internal::Type::BaseModel
               OrHash =
-                T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+                T.type_alias do
+                  T.any(
+                    Increase::CardPayment::Element::CardValidation::NetworkDetails::Visa,
+                    Increase::Internal::AnyHash
+                  )
+                end
 
               # For electronic commerce transactions, this identifies the level of security used
               # in obtaining the customer's payment credential. For mail or telephone order
@@ -11111,7 +11349,12 @@ module Increase
 
           class NetworkIdentifiers < Increase::Internal::Type::BaseModel
             OrHash =
-              T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+              T.type_alias do
+                T.any(
+                  Increase::CardPayment::Element::CardValidation::NetworkIdentifiers,
+                  Increase::Internal::AnyHash
+                )
+              end
 
             # A life-cycle identifier used across e.g., an authorization and a reversal.
             # Expected to be unique per acquirer within a window of time. For some card
@@ -11197,7 +11440,12 @@ module Increase
 
           class Verification < Increase::Internal::Type::BaseModel
             OrHash =
-              T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+              T.type_alias do
+                T.any(
+                  Increase::CardPayment::Element::CardValidation::Verification,
+                  Increase::Internal::AnyHash
+                )
+              end
 
             # Fields related to verification of the Card Verification Code, a 3-digit code on
             # the back of the card.
@@ -11267,7 +11515,12 @@ module Increase
 
             class CardVerificationCode < Increase::Internal::Type::BaseModel
               OrHash =
-                T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+                T.type_alias do
+                  T.any(
+                    Increase::CardPayment::Element::CardValidation::Verification::CardVerificationCode,
+                    Increase::Internal::AnyHash
+                  )
+                end
 
               # The result of verifying the Card Verification Code.
               sig do
@@ -11350,7 +11603,12 @@ module Increase
 
             class CardholderAddress < Increase::Internal::Type::BaseModel
               OrHash =
-                T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+                T.type_alias do
+                  T.any(
+                    Increase::CardPayment::Element::CardValidation::Verification::CardholderAddress,
+                    Increase::Internal::AnyHash
+                  )
+                end
 
               # Line 1 of the address on file for the cardholder.
               sig { returns(T.nilable(String)) }
@@ -11588,7 +11846,9 @@ module Increase
 
       class State < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(Increase::CardPayment::State, Increase::Internal::AnyHash)
+          end
 
         # The total authorized amount in the minor unit of the transaction's currency. For
         # dollars, for example, this is cents.
diff --git a/rbi/increase/models/card_payment_list_params.rbi b/rbi/increase/models/card_payment_list_params.rbi
index 3dad71658..7127ca804 100644
--- a/rbi/increase/models/card_payment_list_params.rbi
+++ b/rbi/increase/models/card_payment_list_params.rbi
@@ -6,7 +6,10 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(Increase::CardPaymentListParams, Increase::Internal::AnyHash)
+        end
 
       # Filter Card Payments to ones belonging to the specified Account.
       sig { returns(T.nilable(String)) }
@@ -89,7 +92,12 @@ module Increase
 
       class CreatedAt < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::CardPaymentListParams::CreatedAt,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # Return results after this [ISO 8601](https://en.wikipedia.org/wiki/ISO_8601)
         # timestamp.
diff --git a/rbi/increase/models/card_payment_retrieve_params.rbi b/rbi/increase/models/card_payment_retrieve_params.rbi
index 208a5eb19..44532ba22 100644
--- a/rbi/increase/models/card_payment_retrieve_params.rbi
+++ b/rbi/increase/models/card_payment_retrieve_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::CardPaymentRetrieveParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       sig do
         params(request_options: Increase::RequestOptions::OrHash).returns(
diff --git a/rbi/increase/models/card_purchase_supplement.rbi b/rbi/increase/models/card_purchase_supplement.rbi
index 76d7daec8..f1a2c2c39 100644
--- a/rbi/increase/models/card_purchase_supplement.rbi
+++ b/rbi/increase/models/card_purchase_supplement.rbi
@@ -3,7 +3,10 @@
 module Increase
   module Models
     class CardPurchaseSupplement < Increase::Internal::Type::BaseModel
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(Increase::CardPurchaseSupplement, Increase::Internal::AnyHash)
+        end
 
       # The Card Purchase Supplement identifier.
       sig { returns(String) }
@@ -89,7 +92,12 @@ module Increase
 
       class Invoice < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::CardPurchaseSupplement::Invoice,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # Discount given to cardholder.
         sig { returns(T.nilable(Integer)) }
@@ -372,7 +380,12 @@ module Increase
 
       class LineItem < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::CardPurchaseSupplement::LineItem,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # The Card Purchase Supplement Line Item identifier.
         sig { returns(String) }
diff --git a/rbi/increase/models/card_purchase_supplement_list_params.rbi b/rbi/increase/models/card_purchase_supplement_list_params.rbi
index 29c19a6d9..36912a9e0 100644
--- a/rbi/increase/models/card_purchase_supplement_list_params.rbi
+++ b/rbi/increase/models/card_purchase_supplement_list_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::CardPurchaseSupplementListParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       # Filter Card Purchase Supplements to ones belonging to the specified Card
       # Payment.
@@ -86,7 +92,12 @@ module Increase
 
       class CreatedAt < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::CardPurchaseSupplementListParams::CreatedAt,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # Return results after this [ISO 8601](https://en.wikipedia.org/wiki/ISO_8601)
         # timestamp.
diff --git a/rbi/increase/models/card_purchase_supplement_retrieve_params.rbi b/rbi/increase/models/card_purchase_supplement_retrieve_params.rbi
index 952932a78..e5a52b8ce 100644
--- a/rbi/increase/models/card_purchase_supplement_retrieve_params.rbi
+++ b/rbi/increase/models/card_purchase_supplement_retrieve_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::CardPurchaseSupplementRetrieveParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       sig do
         params(request_options: Increase::RequestOptions::OrHash).returns(
diff --git a/rbi/increase/models/card_retrieve_params.rbi b/rbi/increase/models/card_retrieve_params.rbi
index f2981fa4b..5a541b0b4 100644
--- a/rbi/increase/models/card_retrieve_params.rbi
+++ b/rbi/increase/models/card_retrieve_params.rbi
@@ -6,7 +6,10 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(Increase::CardRetrieveParams, Increase::Internal::AnyHash)
+        end
 
       sig do
         params(request_options: Increase::RequestOptions::OrHash).returns(
diff --git a/rbi/increase/models/card_update_params.rbi b/rbi/increase/models/card_update_params.rbi
index cfdc94c02..8bf82ac40 100644
--- a/rbi/increase/models/card_update_params.rbi
+++ b/rbi/increase/models/card_update_params.rbi
@@ -6,7 +6,10 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(Increase::CardUpdateParams, Increase::Internal::AnyHash)
+        end
 
       # The card's updated billing address.
       sig { returns(T.nilable(Increase::CardUpdateParams::BillingAddress)) }
@@ -99,7 +102,12 @@ module Increase
 
       class BillingAddress < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::CardUpdateParams::BillingAddress,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # The city of the billing address.
         sig { returns(String) }
@@ -165,7 +173,12 @@ module Increase
 
       class DigitalWallet < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::CardUpdateParams::DigitalWallet,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # The digital card profile assigned to this digital card.
         sig { returns(T.nilable(String)) }
diff --git a/rbi/increase/models/check_deposit.rbi b/rbi/increase/models/check_deposit.rbi
index e225a0cd2..73cfb4547 100644
--- a/rbi/increase/models/check_deposit.rbi
+++ b/rbi/increase/models/check_deposit.rbi
@@ -3,7 +3,10 @@
 module Increase
   module Models
     class CheckDeposit < Increase::Internal::Type::BaseModel
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(Increase::CheckDeposit, Increase::Internal::AnyHash)
+        end
 
       # The deposit's identifier.
       sig { returns(String) }
@@ -240,7 +243,12 @@ module Increase
 
       class DepositAcceptance < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::CheckDeposit::DepositAcceptance,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # The account number printed on the check.
         sig { returns(String) }
@@ -398,7 +406,12 @@ module Increase
 
       class DepositRejection < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::CheckDeposit::DepositRejection,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # The rejected amount in the minor unit of check's currency. For dollars, for
         # example, this is cents.
@@ -649,7 +662,12 @@ module Increase
 
       class DepositReturn < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::CheckDeposit::DepositReturn,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # The returned amount in USD cents.
         sig { returns(Integer) }
@@ -1006,7 +1024,12 @@ module Increase
 
       class DepositSubmission < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::CheckDeposit::DepositSubmission,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # The ID for the File containing the check back image that was submitted to the
         # Check21 network.
@@ -1058,7 +1081,12 @@ module Increase
 
       class InboundFundsHold < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::CheckDeposit::InboundFundsHold,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # The Inbound Funds Hold identifier.
         sig { returns(String) }
diff --git a/rbi/increase/models/check_deposit_create_params.rbi b/rbi/increase/models/check_deposit_create_params.rbi
index db720e8a8..78ad0ea50 100644
--- a/rbi/increase/models/check_deposit_create_params.rbi
+++ b/rbi/increase/models/check_deposit_create_params.rbi
@@ -6,7 +6,10 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(Increase::CheckDepositCreateParams, Increase::Internal::AnyHash)
+        end
 
       # The identifier for the Account to deposit the check in.
       sig { returns(String) }
diff --git a/rbi/increase/models/check_deposit_list_params.rbi b/rbi/increase/models/check_deposit_list_params.rbi
index 96e7bfde1..7d18b658d 100644
--- a/rbi/increase/models/check_deposit_list_params.rbi
+++ b/rbi/increase/models/check_deposit_list_params.rbi
@@ -6,7 +6,10 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(Increase::CheckDepositListParams, Increase::Internal::AnyHash)
+        end
 
       # Filter Check Deposits to those belonging to the specified Account.
       sig { returns(T.nilable(String)) }
@@ -95,7 +98,12 @@ module Increase
 
       class CreatedAt < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::CheckDepositListParams::CreatedAt,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # Return results after this [ISO 8601](https://en.wikipedia.org/wiki/ISO_8601)
         # timestamp.
diff --git a/rbi/increase/models/check_deposit_retrieve_params.rbi b/rbi/increase/models/check_deposit_retrieve_params.rbi
index 4612757a3..786b09b1c 100644
--- a/rbi/increase/models/check_deposit_retrieve_params.rbi
+++ b/rbi/increase/models/check_deposit_retrieve_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::CheckDepositRetrieveParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       sig do
         params(request_options: Increase::RequestOptions::OrHash).returns(
diff --git a/rbi/increase/models/check_transfer.rbi b/rbi/increase/models/check_transfer.rbi
index 3412e4742..8e70c8837 100644
--- a/rbi/increase/models/check_transfer.rbi
+++ b/rbi/increase/models/check_transfer.rbi
@@ -3,7 +3,10 @@
 module Increase
   module Models
     class CheckTransfer < Increase::Internal::Type::BaseModel
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(Increase::CheckTransfer, Increase::Internal::AnyHash)
+        end
 
       # The Check transfer's identifier.
       sig { returns(String) }
@@ -306,7 +309,12 @@ module Increase
 
       class Approval < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::CheckTransfer::Approval,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # The [ISO 8601](https://en.wikipedia.org/wiki/ISO_8601) date and time at which
         # the transfer was approved.
@@ -346,7 +354,12 @@ module Increase
 
       class Cancellation < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::CheckTransfer::Cancellation,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # The [ISO 8601](https://en.wikipedia.org/wiki/ISO_8601) date and time at which
         # the Transfer was canceled.
@@ -386,7 +399,12 @@ module Increase
 
       class CreatedBy < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::CheckTransfer::CreatedBy,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # If present, details about the API key that created the transfer.
         sig { returns(T.nilable(Increase::CheckTransfer::CreatedBy::APIKey)) }
@@ -477,7 +495,12 @@ module Increase
 
         class APIKey < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::CheckTransfer::CreatedBy::APIKey,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # The description set for the API key when it was created.
           sig { returns(T.nilable(String)) }
@@ -542,7 +565,12 @@ module Increase
 
         class OAuthApplication < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::CheckTransfer::CreatedBy::OAuthApplication,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # The name of the OAuth Application.
           sig { returns(String) }
@@ -563,7 +591,12 @@ module Increase
 
         class User < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::CheckTransfer::CreatedBy::User,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # The email address of the User.
           sig { returns(String) }
@@ -654,7 +687,9 @@ module Increase
 
       class Mailing < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(Increase::CheckTransfer::Mailing, Increase::Internal::AnyHash)
+          end
 
         # The ID of the file corresponding to an image of the check that was mailed, if
         # available.
@@ -706,7 +741,12 @@ module Increase
 
       class PhysicalCheck < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::CheckTransfer::PhysicalCheck,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # The ID of the file for the check attachment.
         sig { returns(T.nilable(String)) }
@@ -853,7 +893,12 @@ module Increase
 
         class MailingAddress < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::CheckTransfer::PhysicalCheck::MailingAddress,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # The city of the check's destination.
           sig { returns(T.nilable(String)) }
@@ -924,7 +969,12 @@ module Increase
 
         class ReturnAddress < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::CheckTransfer::PhysicalCheck::ReturnAddress,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # The city of the check's destination.
           sig { returns(T.nilable(String)) }
@@ -1033,7 +1083,12 @@ module Increase
 
         class TrackingUpdate < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::CheckTransfer::PhysicalCheck::TrackingUpdate,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # The type of tracking event.
           sig do
@@ -1204,7 +1259,12 @@ module Increase
 
       class StopPaymentRequest < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::CheckTransfer::StopPaymentRequest,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # The reason why this transfer was stopped.
         sig do
@@ -1350,7 +1410,12 @@ module Increase
 
       class Submission < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::CheckTransfer::Submission,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # Per USPS requirements, Increase will standardize the address to USPS standards
         # and check it against the USPS National Change of Address (NCOA) database before
@@ -1475,7 +1540,12 @@ module Increase
 
         class SubmittedAddress < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::CheckTransfer::Submission::SubmittedAddress,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # The submitted address city.
           sig { returns(String) }
@@ -1548,7 +1618,12 @@ module Increase
 
       class ThirdParty < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::CheckTransfer::ThirdParty,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # The name that you will print on the check.
         sig { returns(T.nilable(String)) }
diff --git a/rbi/increase/models/check_transfer_approve_params.rbi b/rbi/increase/models/check_transfer_approve_params.rbi
index 50e424608..e2425b0ce 100644
--- a/rbi/increase/models/check_transfer_approve_params.rbi
+++ b/rbi/increase/models/check_transfer_approve_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::CheckTransferApproveParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       sig do
         params(request_options: Increase::RequestOptions::OrHash).returns(
diff --git a/rbi/increase/models/check_transfer_cancel_params.rbi b/rbi/increase/models/check_transfer_cancel_params.rbi
index d6815512f..125afe569 100644
--- a/rbi/increase/models/check_transfer_cancel_params.rbi
+++ b/rbi/increase/models/check_transfer_cancel_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::CheckTransferCancelParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       sig do
         params(request_options: Increase::RequestOptions::OrHash).returns(
diff --git a/rbi/increase/models/check_transfer_create_params.rbi b/rbi/increase/models/check_transfer_create_params.rbi
index 7813a8af5..7bde20fd1 100644
--- a/rbi/increase/models/check_transfer_create_params.rbi
+++ b/rbi/increase/models/check_transfer_create_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::CheckTransferCreateParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       # The identifier for the account that will send the transfer.
       sig { returns(String) }
@@ -178,7 +184,12 @@ module Increase
 
       class PhysicalCheck < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::CheckTransferCreateParams::PhysicalCheck,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # Details for where Increase will mail the check.
         sig do
@@ -333,7 +344,12 @@ module Increase
 
         class MailingAddress < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::CheckTransferCreateParams::PhysicalCheck::MailingAddress,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # The city component of the check's destination address.
           sig { returns(String) }
@@ -399,7 +415,12 @@ module Increase
 
         class ReturnAddress < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::CheckTransferCreateParams::PhysicalCheck::ReturnAddress,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # The city of the return address.
           sig { returns(String) }
@@ -515,7 +536,12 @@ module Increase
 
       class ThirdParty < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::CheckTransferCreateParams::ThirdParty,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # The pay-to name you will print on the check. If provided, this is used for
         # [Positive Pay](/documentation/positive-pay). If this is omitted, Increase will
diff --git a/rbi/increase/models/check_transfer_list_params.rbi b/rbi/increase/models/check_transfer_list_params.rbi
index bfbee7e2b..ebc8a7d07 100644
--- a/rbi/increase/models/check_transfer_list_params.rbi
+++ b/rbi/increase/models/check_transfer_list_params.rbi
@@ -6,7 +6,10 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(Increase::CheckTransferListParams, Increase::Internal::AnyHash)
+        end
 
       # Filter Check Transfers to those that originated from the specified Account.
       sig { returns(T.nilable(String)) }
@@ -106,7 +109,12 @@ module Increase
 
       class CreatedAt < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::CheckTransferListParams::CreatedAt,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # Return results after this [ISO 8601](https://en.wikipedia.org/wiki/ISO_8601)
         # timestamp.
@@ -175,7 +183,12 @@ module Increase
 
       class Status < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::CheckTransferListParams::Status,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # Filter Check Transfers to those that have the specified status. For GET
         # requests, this should be encoded as a comma-delimited string, such as
diff --git a/rbi/increase/models/check_transfer_retrieve_params.rbi b/rbi/increase/models/check_transfer_retrieve_params.rbi
index 542a082ad..45e799ca0 100644
--- a/rbi/increase/models/check_transfer_retrieve_params.rbi
+++ b/rbi/increase/models/check_transfer_retrieve_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::CheckTransferRetrieveParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       sig do
         params(request_options: Increase::RequestOptions::OrHash).returns(
diff --git a/rbi/increase/models/check_transfer_stop_payment_params.rbi b/rbi/increase/models/check_transfer_stop_payment_params.rbi
index 27ab3341c..4a032dcbd 100644
--- a/rbi/increase/models/check_transfer_stop_payment_params.rbi
+++ b/rbi/increase/models/check_transfer_stop_payment_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::CheckTransferStopPaymentParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       # The reason why this transfer should be stopped.
       sig do
diff --git a/rbi/increase/models/declined_transaction.rbi b/rbi/increase/models/declined_transaction.rbi
index 1a61f5998..17cc616f1 100644
--- a/rbi/increase/models/declined_transaction.rbi
+++ b/rbi/increase/models/declined_transaction.rbi
@@ -3,7 +3,10 @@
 module Increase
   module Models
     class DeclinedTransaction < Increase::Internal::Type::BaseModel
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(Increase::DeclinedTransaction, Increase::Internal::AnyHash)
+        end
 
       # The Declined Transaction identifier.
       sig { returns(String) }
@@ -212,7 +215,12 @@ module Increase
 
       class Source < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::DeclinedTransaction::Source,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # An ACH Decline object. This field will be present in the JSON response if and
         # only if `category` is equal to `ach_decline`.
@@ -433,7 +441,12 @@ module Increase
 
         class ACHDecline < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::DeclinedTransaction::Source::ACHDecline,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # The ACH Decline's identifier.
           sig { returns(String) }
@@ -741,7 +754,12 @@ module Increase
 
         class CardDecline < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::DeclinedTransaction::Source::CardDecline,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # The Card Decline identifier.
           sig { returns(String) }
@@ -1246,7 +1264,12 @@ module Increase
 
           class NetworkDetails < Increase::Internal::Type::BaseModel
             OrHash =
-              T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+              T.type_alias do
+                T.any(
+                  Increase::DeclinedTransaction::Source::CardDecline::NetworkDetails,
+                  Increase::Internal::AnyHash
+                )
+              end
 
             # The payment network used to process this card authorization.
             sig do
@@ -1343,7 +1366,12 @@ module Increase
 
             class Visa < Increase::Internal::Type::BaseModel
               OrHash =
-                T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+                T.type_alias do
+                  T.any(
+                    Increase::DeclinedTransaction::Source::CardDecline::NetworkDetails::Visa,
+                    Increase::Internal::AnyHash
+                  )
+                end
 
               # For electronic commerce transactions, this identifies the level of security used
               # in obtaining the customer's payment credential. For mail or telephone order
@@ -1686,7 +1714,12 @@ module Increase
 
           class NetworkIdentifiers < Increase::Internal::Type::BaseModel
             OrHash =
-              T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+              T.type_alias do
+                T.any(
+                  Increase::DeclinedTransaction::Source::CardDecline::NetworkIdentifiers,
+                  Increase::Internal::AnyHash
+                )
+              end
 
             # A life-cycle identifier used across e.g., an authorization and a reversal.
             # Expected to be unique per acquirer within a window of time. For some card
@@ -2025,7 +2058,12 @@ module Increase
 
           class Verification < Increase::Internal::Type::BaseModel
             OrHash =
-              T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+              T.type_alias do
+                T.any(
+                  Increase::DeclinedTransaction::Source::CardDecline::Verification,
+                  Increase::Internal::AnyHash
+                )
+              end
 
             # Fields related to verification of the Card Verification Code, a 3-digit code on
             # the back of the card.
@@ -2095,7 +2133,12 @@ module Increase
 
             class CardVerificationCode < Increase::Internal::Type::BaseModel
               OrHash =
-                T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+                T.type_alias do
+                  T.any(
+                    Increase::DeclinedTransaction::Source::CardDecline::Verification::CardVerificationCode,
+                    Increase::Internal::AnyHash
+                  )
+                end
 
               # The result of verifying the Card Verification Code.
               sig do
@@ -2178,7 +2221,12 @@ module Increase
 
             class CardholderAddress < Increase::Internal::Type::BaseModel
               OrHash =
-                T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+                T.type_alias do
+                  T.any(
+                    Increase::DeclinedTransaction::Source::CardDecline::Verification::CardholderAddress,
+                    Increase::Internal::AnyHash
+                  )
+                end
 
               # Line 1 of the address on file for the cardholder.
               sig { returns(T.nilable(String)) }
@@ -2389,7 +2437,12 @@ module Increase
 
         class CheckDecline < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::DeclinedTransaction::Source::CheckDecline,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # The declined amount in USD cents.
           sig { returns(Integer) }
@@ -2626,7 +2679,12 @@ module Increase
 
         class CheckDepositRejection < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::DeclinedTransaction::Source::CheckDepositRejection,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # The rejected amount in the minor unit of check's currency. For dollars, for
           # example, this is cents.
@@ -2884,7 +2942,12 @@ module Increase
 
         class InboundRealTimePaymentsTransferDecline < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::DeclinedTransaction::Source::InboundRealTimePaymentsTransferDecline,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # The declined amount in the minor unit of the destination account currency. For
           # dollars, for example, this is cents.
@@ -3141,7 +3204,12 @@ module Increase
 
         class WireDecline < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::DeclinedTransaction::Source::WireDecline,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # The identifier of the Inbound Wire Transfer that was declined.
           sig { returns(String) }
diff --git a/rbi/increase/models/declined_transaction_list_params.rbi b/rbi/increase/models/declined_transaction_list_params.rbi
index 59235a168..1048f5ced 100644
--- a/rbi/increase/models/declined_transaction_list_params.rbi
+++ b/rbi/increase/models/declined_transaction_list_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::DeclinedTransactionListParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       # Filter Declined Transactions to ones belonging to the specified Account.
       sig { returns(T.nilable(String)) }
@@ -107,7 +113,12 @@ module Increase
 
       class Category < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::DeclinedTransactionListParams::Category,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # Return results whose value is in the provided list. For GET requests, this
         # should be encoded as a comma-delimited string, such as `?in=one,two,three`.
@@ -235,7 +246,12 @@ module Increase
 
       class CreatedAt < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::DeclinedTransactionListParams::CreatedAt,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # Return results after this [ISO 8601](https://en.wikipedia.org/wiki/ISO_8601)
         # timestamp.
diff --git a/rbi/increase/models/declined_transaction_retrieve_params.rbi b/rbi/increase/models/declined_transaction_retrieve_params.rbi
index 1e9073965..0a08f1a46 100644
--- a/rbi/increase/models/declined_transaction_retrieve_params.rbi
+++ b/rbi/increase/models/declined_transaction_retrieve_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::DeclinedTransactionRetrieveParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       sig do
         params(request_options: Increase::RequestOptions::OrHash).returns(
diff --git a/rbi/increase/models/digital_card_profile.rbi b/rbi/increase/models/digital_card_profile.rbi
index b481ee86f..69d0c8ba1 100644
--- a/rbi/increase/models/digital_card_profile.rbi
+++ b/rbi/increase/models/digital_card_profile.rbi
@@ -3,7 +3,10 @@
 module Increase
   module Models
     class DigitalCardProfile < Increase::Internal::Type::BaseModel
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(Increase::DigitalCardProfile, Increase::Internal::AnyHash)
+        end
 
       # The Card Profile identifier.
       sig { returns(String) }
@@ -185,7 +188,12 @@ module Increase
 
       class TextColor < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::DigitalCardProfile::TextColor,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # The value of the blue channel in the RGB color.
         sig { returns(Integer) }
diff --git a/rbi/increase/models/digital_card_profile_archive_params.rbi b/rbi/increase/models/digital_card_profile_archive_params.rbi
index 737373aca..17281e975 100644
--- a/rbi/increase/models/digital_card_profile_archive_params.rbi
+++ b/rbi/increase/models/digital_card_profile_archive_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::DigitalCardProfileArchiveParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       sig do
         params(request_options: Increase::RequestOptions::OrHash).returns(
diff --git a/rbi/increase/models/digital_card_profile_clone_params.rbi b/rbi/increase/models/digital_card_profile_clone_params.rbi
index 0c030d047..06d308c0b 100644
--- a/rbi/increase/models/digital_card_profile_clone_params.rbi
+++ b/rbi/increase/models/digital_card_profile_clone_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::DigitalCardProfileCloneParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       # The identifier of the File containing the card's icon image.
       sig { returns(T.nilable(String)) }
@@ -136,7 +142,12 @@ module Increase
 
       class TextColor < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::DigitalCardProfileCloneParams::TextColor,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # The value of the blue channel in the RGB color.
         sig { returns(Integer) }
diff --git a/rbi/increase/models/digital_card_profile_create_params.rbi b/rbi/increase/models/digital_card_profile_create_params.rbi
index 984f49a91..b3ec4d3ec 100644
--- a/rbi/increase/models/digital_card_profile_create_params.rbi
+++ b/rbi/increase/models/digital_card_profile_create_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::DigitalCardProfileCreateParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       # The identifier of the File containing the card's icon image.
       sig { returns(String) }
@@ -122,7 +128,12 @@ module Increase
 
       class TextColor < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::DigitalCardProfileCreateParams::TextColor,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # The value of the blue channel in the RGB color.
         sig { returns(Integer) }
diff --git a/rbi/increase/models/digital_card_profile_list_params.rbi b/rbi/increase/models/digital_card_profile_list_params.rbi
index 215a65e40..3471c28d8 100644
--- a/rbi/increase/models/digital_card_profile_list_params.rbi
+++ b/rbi/increase/models/digital_card_profile_list_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::DigitalCardProfileListParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       # Return the page of entries after this one.
       sig { returns(T.nilable(String)) }
@@ -84,7 +90,12 @@ module Increase
 
       class Status < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::DigitalCardProfileListParams::Status,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # Filter Digital Card Profiles for those with the specified digital wallet status
         # or statuses. For GET requests, this should be encoded as a comma-delimited
diff --git a/rbi/increase/models/digital_card_profile_retrieve_params.rbi b/rbi/increase/models/digital_card_profile_retrieve_params.rbi
index 01ff79af0..7dd704134 100644
--- a/rbi/increase/models/digital_card_profile_retrieve_params.rbi
+++ b/rbi/increase/models/digital_card_profile_retrieve_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::DigitalCardProfileRetrieveParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       sig do
         params(request_options: Increase::RequestOptions::OrHash).returns(
diff --git a/rbi/increase/models/digital_wallet_token.rbi b/rbi/increase/models/digital_wallet_token.rbi
index 1ad28ab20..f702b2bcd 100644
--- a/rbi/increase/models/digital_wallet_token.rbi
+++ b/rbi/increase/models/digital_wallet_token.rbi
@@ -3,7 +3,10 @@
 module Increase
   module Models
     class DigitalWalletToken < Increase::Internal::Type::BaseModel
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(Increase::DigitalWalletToken, Increase::Internal::AnyHash)
+        end
 
       # The Digital Wallet Token identifier.
       sig { returns(String) }
@@ -117,7 +120,12 @@ module Increase
 
       class Cardholder < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::DigitalWalletToken::Cardholder,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # Name of the cardholder, for example "John Smith".
         sig { returns(T.nilable(String)) }
@@ -138,7 +146,12 @@ module Increase
 
       class Device < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::DigitalWalletToken::Device,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # Device type.
         sig do
@@ -396,7 +409,12 @@ module Increase
 
       class Update < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::DigitalWalletToken::Update,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # The status the update changed this Digital Wallet Token to.
         sig do
diff --git a/rbi/increase/models/digital_wallet_token_list_params.rbi b/rbi/increase/models/digital_wallet_token_list_params.rbi
index ee853c25a..fcd768fb0 100644
--- a/rbi/increase/models/digital_wallet_token_list_params.rbi
+++ b/rbi/increase/models/digital_wallet_token_list_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::DigitalWalletTokenListParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       # Filter Digital Wallet Tokens to ones belonging to the specified Card.
       sig { returns(T.nilable(String)) }
@@ -80,7 +86,12 @@ module Increase
 
       class CreatedAt < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::DigitalWalletTokenListParams::CreatedAt,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # Return results after this [ISO 8601](https://en.wikipedia.org/wiki/ISO_8601)
         # timestamp.
diff --git a/rbi/increase/models/digital_wallet_token_retrieve_params.rbi b/rbi/increase/models/digital_wallet_token_retrieve_params.rbi
index f2a6f0666..d386a701d 100644
--- a/rbi/increase/models/digital_wallet_token_retrieve_params.rbi
+++ b/rbi/increase/models/digital_wallet_token_retrieve_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::DigitalWalletTokenRetrieveParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       sig do
         params(request_options: Increase::RequestOptions::OrHash).returns(
diff --git a/rbi/increase/models/document.rbi b/rbi/increase/models/document.rbi
index e8bed564e..42d58b329 100644
--- a/rbi/increase/models/document.rbi
+++ b/rbi/increase/models/document.rbi
@@ -3,7 +3,8 @@
 module Increase
   module Models
     class Document < Increase::Internal::Type::BaseModel
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias { T.any(Increase::Document, Increase::Internal::AnyHash) }
 
       # The Document identifier.
       sig { returns(String) }
diff --git a/rbi/increase/models/document_list_params.rbi b/rbi/increase/models/document_list_params.rbi
index d05daef7c..ebd7373b5 100644
--- a/rbi/increase/models/document_list_params.rbi
+++ b/rbi/increase/models/document_list_params.rbi
@@ -6,7 +6,10 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(Increase::DocumentListParams, Increase::Internal::AnyHash)
+        end
 
       sig { returns(T.nilable(Increase::DocumentListParams::Category)) }
       attr_reader :category
@@ -87,7 +90,12 @@ module Increase
 
       class Category < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::DocumentListParams::Category,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # Filter Documents for those with the specified category or categories. For GET
         # requests, this should be encoded as a comma-delimited string, such as
@@ -181,7 +189,12 @@ module Increase
 
       class CreatedAt < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::DocumentListParams::CreatedAt,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # Return results after this [ISO 8601](https://en.wikipedia.org/wiki/ISO_8601)
         # timestamp.
diff --git a/rbi/increase/models/document_retrieve_params.rbi b/rbi/increase/models/document_retrieve_params.rbi
index f4a169006..690e24b08 100644
--- a/rbi/increase/models/document_retrieve_params.rbi
+++ b/rbi/increase/models/document_retrieve_params.rbi
@@ -6,7 +6,10 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(Increase::DocumentRetrieveParams, Increase::Internal::AnyHash)
+        end
 
       sig do
         params(request_options: Increase::RequestOptions::OrHash).returns(
diff --git a/rbi/increase/models/entity.rbi b/rbi/increase/models/entity.rbi
index 944ae7490..810f7db2c 100644
--- a/rbi/increase/models/entity.rbi
+++ b/rbi/increase/models/entity.rbi
@@ -3,7 +3,8 @@
 module Increase
   module Models
     class Entity < Increase::Internal::Type::BaseModel
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias { T.any(Increase::Entity, Increase::Internal::AnyHash) }
 
       # The entity's identifier.
       sig { returns(String) }
@@ -210,7 +211,9 @@ module Increase
 
       class Corporation < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(Increase::Entity::Corporation, Increase::Internal::AnyHash)
+          end
 
         # The corporation's address.
         sig { returns(Increase::Entity::Corporation::Address) }
@@ -304,7 +307,12 @@ module Increase
 
         class Address < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::Entity::Corporation::Address,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # The city of the address.
           sig { returns(String) }
@@ -369,7 +377,12 @@ module Increase
 
         class BeneficialOwner < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::Entity::Corporation::BeneficialOwner,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # The identifier of this beneficial owner.
           sig { returns(String) }
@@ -440,7 +453,12 @@ module Increase
 
           class Individual < Increase::Internal::Type::BaseModel
             OrHash =
-              T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+              T.type_alias do
+                T.any(
+                  Increase::Entity::Corporation::BeneficialOwner::Individual,
+                  Increase::Internal::AnyHash
+                )
+              end
 
             # The person's address.
             sig do
@@ -522,7 +540,12 @@ module Increase
 
             class Address < Increase::Internal::Type::BaseModel
               OrHash =
-                T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+                T.type_alias do
+                  T.any(
+                    Increase::Entity::Corporation::BeneficialOwner::Individual::Address,
+                    Increase::Internal::AnyHash
+                  )
+                end
 
               # The city, district, town, or village of the address.
               sig { returns(T.nilable(String)) }
@@ -595,7 +618,12 @@ module Increase
 
             class Identification < Increase::Internal::Type::BaseModel
               OrHash =
-                T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+                T.type_alias do
+                  T.any(
+                    Increase::Entity::Corporation::BeneficialOwner::Individual::Identification,
+                    Increase::Internal::AnyHash
+                  )
+                end
 
               # A method that can be used to verify the individual's identity.
               sig do
@@ -742,7 +770,12 @@ module Increase
 
       class GovernmentAuthority < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::Entity::GovernmentAuthority,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # The government authority's address.
         sig { returns(Increase::Entity::GovernmentAuthority::Address) }
@@ -833,7 +866,12 @@ module Increase
 
         class Address < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::Entity::GovernmentAuthority::Address,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # The city of the address.
           sig { returns(String) }
@@ -898,7 +936,12 @@ module Increase
 
         class AuthorizedPerson < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::Entity::GovernmentAuthority::AuthorizedPerson,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # The identifier of this authorized person.
           sig { returns(String) }
@@ -959,7 +1002,9 @@ module Increase
 
       class Joint < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(Increase::Entity::Joint, Increase::Internal::AnyHash)
+          end
 
         # The two individuals that share control of the entity.
         sig { returns(T::Array[Increase::Entity::Joint::Individual]) }
@@ -997,7 +1042,12 @@ module Increase
 
         class Individual < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::Entity::Joint::Individual,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # The person's address.
           sig { returns(Increase::Entity::Joint::Individual::Address) }
@@ -1067,7 +1117,12 @@ module Increase
 
           class Address < Increase::Internal::Type::BaseModel
             OrHash =
-              T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+              T.type_alias do
+                T.any(
+                  Increase::Entity::Joint::Individual::Address,
+                  Increase::Internal::AnyHash
+                )
+              end
 
             # The city of the address.
             sig { returns(String) }
@@ -1132,7 +1187,12 @@ module Increase
 
           class Identification < Increase::Internal::Type::BaseModel
             OrHash =
-              T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+              T.type_alias do
+                T.any(
+                  Increase::Entity::Joint::Individual::Identification,
+                  Increase::Internal::AnyHash
+                )
+              end
 
             # A method that can be used to verify the individual's identity.
             sig do
@@ -1240,7 +1300,9 @@ module Increase
 
       class NaturalPerson < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(Increase::Entity::NaturalPerson, Increase::Internal::AnyHash)
+          end
 
         # The person's address.
         sig { returns(Increase::Entity::NaturalPerson::Address) }
@@ -1309,7 +1371,12 @@ module Increase
 
         class Address < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::Entity::NaturalPerson::Address,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # The city of the address.
           sig { returns(String) }
@@ -1374,7 +1441,12 @@ module Increase
 
         class Identification < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::Entity::NaturalPerson::Identification,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # A method that can be used to verify the individual's identity.
           sig do
@@ -1540,7 +1612,12 @@ module Increase
 
       class ThirdPartyVerification < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::Entity::ThirdPartyVerification,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # The reference identifier for the third party verification.
         sig { returns(String) }
@@ -1620,7 +1697,9 @@ module Increase
 
       class Trust < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(Increase::Entity::Trust, Increase::Internal::AnyHash)
+          end
 
         # The trust's address.
         sig { returns(Increase::Entity::Trust::Address) }
@@ -1718,7 +1797,12 @@ module Increase
 
         class Address < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::Entity::Trust::Address,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # The city of the address.
           sig { returns(String) }
@@ -1808,7 +1892,12 @@ module Increase
 
         class Grantor < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::Entity::Trust::Grantor,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # The person's address.
           sig { returns(Increase::Entity::Trust::Grantor::Address) }
@@ -1879,7 +1968,12 @@ module Increase
 
           class Address < Increase::Internal::Type::BaseModel
             OrHash =
-              T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+              T.type_alias do
+                T.any(
+                  Increase::Entity::Trust::Grantor::Address,
+                  Increase::Internal::AnyHash
+                )
+              end
 
             # The city of the address.
             sig { returns(String) }
@@ -1944,7 +2038,12 @@ module Increase
 
           class Identification < Increase::Internal::Type::BaseModel
             OrHash =
-              T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+              T.type_alias do
+                T.any(
+                  Increase::Entity::Trust::Grantor::Identification,
+                  Increase::Internal::AnyHash
+                )
+              end
 
             # A method that can be used to verify the individual's identity.
             sig do
@@ -2051,7 +2150,12 @@ module Increase
 
         class Trustee < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::Entity::Trust::Trustee,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # The individual trustee of the trust. Will be present if the trustee's
           # `structure` is equal to `individual`.
@@ -2105,7 +2209,12 @@ module Increase
 
           class Individual < Increase::Internal::Type::BaseModel
             OrHash =
-              T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+              T.type_alias do
+                T.any(
+                  Increase::Entity::Trust::Trustee::Individual,
+                  Increase::Internal::AnyHash
+                )
+              end
 
             # The person's address.
             sig do
@@ -2186,7 +2295,12 @@ module Increase
 
             class Address < Increase::Internal::Type::BaseModel
               OrHash =
-                T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+                T.type_alias do
+                  T.any(
+                    Increase::Entity::Trust::Trustee::Individual::Address,
+                    Increase::Internal::AnyHash
+                  )
+                end
 
               # The city of the address.
               sig { returns(String) }
@@ -2251,7 +2365,12 @@ module Increase
 
             class Identification < Increase::Internal::Type::BaseModel
               OrHash =
-                T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+                T.type_alias do
+                  T.any(
+                    Increase::Entity::Trust::Trustee::Individual::Identification,
+                    Increase::Internal::AnyHash
+                  )
+                end
 
               # A method that can be used to verify the individual's identity.
               sig do
diff --git a/rbi/increase/models/entity_archive_beneficial_owner_params.rbi b/rbi/increase/models/entity_archive_beneficial_owner_params.rbi
index 55b9353d2..193b638c4 100644
--- a/rbi/increase/models/entity_archive_beneficial_owner_params.rbi
+++ b/rbi/increase/models/entity_archive_beneficial_owner_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::EntityArchiveBeneficialOwnerParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       # The identifying details of anyone controlling or owning 25% or more of the
       # corporation.
diff --git a/rbi/increase/models/entity_archive_params.rbi b/rbi/increase/models/entity_archive_params.rbi
index f643ebf52..f1819e50a 100644
--- a/rbi/increase/models/entity_archive_params.rbi
+++ b/rbi/increase/models/entity_archive_params.rbi
@@ -6,7 +6,10 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(Increase::EntityArchiveParams, Increase::Internal::AnyHash)
+        end
 
       sig do
         params(request_options: Increase::RequestOptions::OrHash).returns(
diff --git a/rbi/increase/models/entity_confirm_params.rbi b/rbi/increase/models/entity_confirm_params.rbi
index 95f46b0d4..459c5a65b 100644
--- a/rbi/increase/models/entity_confirm_params.rbi
+++ b/rbi/increase/models/entity_confirm_params.rbi
@@ -6,7 +6,10 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(Increase::EntityConfirmParams, Increase::Internal::AnyHash)
+        end
 
       # When your user confirmed the Entity's details. If not provided, the current time
       # will be used.
diff --git a/rbi/increase/models/entity_create_beneficial_owner_params.rbi b/rbi/increase/models/entity_create_beneficial_owner_params.rbi
index b8cc740fe..aad1739d6 100644
--- a/rbi/increase/models/entity_create_beneficial_owner_params.rbi
+++ b/rbi/increase/models/entity_create_beneficial_owner_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::EntityCreateBeneficialOwnerParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       # The identifying details of anyone controlling or owning 25% or more of the
       # corporation.
@@ -52,7 +58,12 @@ module Increase
 
       class BeneficialOwner < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::EntityCreateBeneficialOwnerParams::BeneficialOwner,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # Personal details for the beneficial owner.
         sig do
@@ -132,7 +143,12 @@ module Increase
 
         class Individual < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::EntityCreateBeneficialOwnerParams::BeneficialOwner::Individual,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # The individual's physical address. Mail receiving locations like PO Boxes and
           # PMB's are disallowed.
@@ -233,7 +249,12 @@ module Increase
 
           class Address < Increase::Internal::Type::BaseModel
             OrHash =
-              T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+              T.type_alias do
+                T.any(
+                  Increase::EntityCreateBeneficialOwnerParams::BeneficialOwner::Individual::Address,
+                  Increase::Internal::AnyHash
+                )
+              end
 
             # The two-letter ISO 3166-1 alpha-2 code for the country of the address.
             sig { returns(String) }
@@ -321,7 +342,12 @@ module Increase
 
           class Identification < Increase::Internal::Type::BaseModel
             OrHash =
-              T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+              T.type_alias do
+                T.any(
+                  Increase::EntityCreateBeneficialOwnerParams::BeneficialOwner::Individual::Identification,
+                  Increase::Internal::AnyHash
+                )
+              end
 
             # A method that can be used to verify the individual's identity.
             sig do
@@ -504,7 +530,12 @@ module Increase
 
             class DriversLicense < Increase::Internal::Type::BaseModel
               OrHash =
-                T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+                T.type_alias do
+                  T.any(
+                    Increase::EntityCreateBeneficialOwnerParams::BeneficialOwner::Individual::Identification::DriversLicense,
+                    Increase::Internal::AnyHash
+                  )
+                end
 
               # The driver's license's expiration date in YYYY-MM-DD format.
               sig { returns(Date) }
@@ -563,7 +594,12 @@ module Increase
 
             class Other < Increase::Internal::Type::BaseModel
               OrHash =
-                T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+                T.type_alias do
+                  T.any(
+                    Increase::EntityCreateBeneficialOwnerParams::BeneficialOwner::Individual::Identification::Other,
+                    Increase::Internal::AnyHash
+                  )
+                end
 
               # The two-character ISO 3166-1 code representing the country that issued the
               # document.
@@ -637,7 +673,12 @@ module Increase
 
             class Passport < Increase::Internal::Type::BaseModel
               OrHash =
-                T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+                T.type_alias do
+                  T.any(
+                    Increase::EntityCreateBeneficialOwnerParams::BeneficialOwner::Individual::Identification::Passport,
+                    Increase::Internal::AnyHash
+                  )
+                end
 
               # The country that issued the passport.
               sig { returns(String) }
diff --git a/rbi/increase/models/entity_create_params.rbi b/rbi/increase/models/entity_create_params.rbi
index db9c4441e..958668bc6 100644
--- a/rbi/increase/models/entity_create_params.rbi
+++ b/rbi/increase/models/entity_create_params.rbi
@@ -6,7 +6,10 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(Increase::EntityCreateParams, Increase::Internal::AnyHash)
+        end
 
       # The type of Entity to create.
       sig { returns(Increase::EntityCreateParams::Structure::OrSymbol) }
@@ -231,7 +234,12 @@ module Increase
 
       class Corporation < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::EntityCreateParams::Corporation,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # The entity's physical address. Mail receiving locations like PO Boxes and PMB's
         # are disallowed.
@@ -378,7 +386,12 @@ module Increase
 
         class Address < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::EntityCreateParams::Corporation::Address,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # The city of the address.
           sig { returns(String) }
@@ -447,7 +460,12 @@ module Increase
 
         class BeneficialOwner < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::EntityCreateParams::Corporation::BeneficialOwner,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # Personal details for the beneficial owner.
           sig do
@@ -525,7 +543,12 @@ module Increase
 
           class Individual < Increase::Internal::Type::BaseModel
             OrHash =
-              T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+              T.type_alias do
+                T.any(
+                  Increase::EntityCreateParams::Corporation::BeneficialOwner::Individual,
+                  Increase::Internal::AnyHash
+                )
+              end
 
             # The individual's physical address. Mail receiving locations like PO Boxes and
             # PMB's are disallowed.
@@ -626,7 +649,12 @@ module Increase
 
             class Address < Increase::Internal::Type::BaseModel
               OrHash =
-                T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+                T.type_alias do
+                  T.any(
+                    Increase::EntityCreateParams::Corporation::BeneficialOwner::Individual::Address,
+                    Increase::Internal::AnyHash
+                  )
+                end
 
               # The two-letter ISO 3166-1 alpha-2 code for the country of the address.
               sig { returns(String) }
@@ -714,7 +742,12 @@ module Increase
 
             class Identification < Increase::Internal::Type::BaseModel
               OrHash =
-                T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+                T.type_alias do
+                  T.any(
+                    Increase::EntityCreateParams::Corporation::BeneficialOwner::Individual::Identification,
+                    Increase::Internal::AnyHash
+                  )
+                end
 
               # A method that can be used to verify the individual's identity.
               sig do
@@ -898,7 +931,10 @@ module Increase
               class DriversLicense < Increase::Internal::Type::BaseModel
                 OrHash =
                   T.type_alias do
-                    T.any(T.self_type, Increase::Internal::AnyHash)
+                    T.any(
+                      Increase::EntityCreateParams::Corporation::BeneficialOwner::Individual::Identification::DriversLicense,
+                      Increase::Internal::AnyHash
+                    )
                   end
 
                 # The driver's license's expiration date in YYYY-MM-DD format.
@@ -959,7 +995,10 @@ module Increase
               class Other < Increase::Internal::Type::BaseModel
                 OrHash =
                   T.type_alias do
-                    T.any(T.self_type, Increase::Internal::AnyHash)
+                    T.any(
+                      Increase::EntityCreateParams::Corporation::BeneficialOwner::Individual::Identification::Other,
+                      Increase::Internal::AnyHash
+                    )
                   end
 
                 # The two-character ISO 3166-1 code representing the country that issued the
@@ -1035,7 +1074,10 @@ module Increase
               class Passport < Increase::Internal::Type::BaseModel
                 OrHash =
                   T.type_alias do
-                    T.any(T.self_type, Increase::Internal::AnyHash)
+                    T.any(
+                      Increase::EntityCreateParams::Corporation::BeneficialOwner::Individual::Identification::Passport,
+                      Increase::Internal::AnyHash
+                    )
                   end
 
                 # The country that issued the passport.
@@ -1168,7 +1210,12 @@ module Increase
 
       class GovernmentAuthority < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::EntityCreateParams::GovernmentAuthority,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # The entity's physical address. Mail receiving locations like PO Boxes and PMB's
         # are disallowed.
@@ -1274,7 +1321,12 @@ module Increase
 
         class Address < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::EntityCreateParams::GovernmentAuthority::Address,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # The city of the address.
           sig { returns(String) }
@@ -1343,7 +1395,12 @@ module Increase
 
         class AuthorizedPerson < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::EntityCreateParams::GovernmentAuthority::AuthorizedPerson,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # The person's legal name.
           sig { returns(String) }
@@ -1395,7 +1452,12 @@ module Increase
 
       class Joint < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::EntityCreateParams::Joint,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # The two individuals that share control of the entity.
         sig do
@@ -1441,7 +1503,12 @@ module Increase
 
         class Individual < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::EntityCreateParams::Joint::Individual,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # The individual's physical address. Mail receiving locations like PO Boxes and
           # PMB's are disallowed.
@@ -1539,7 +1606,12 @@ module Increase
 
           class Address < Increase::Internal::Type::BaseModel
             OrHash =
-              T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+              T.type_alias do
+                T.any(
+                  Increase::EntityCreateParams::Joint::Individual::Address,
+                  Increase::Internal::AnyHash
+                )
+              end
 
             # The city of the address.
             sig { returns(String) }
@@ -1608,7 +1680,12 @@ module Increase
 
           class Identification < Increase::Internal::Type::BaseModel
             OrHash =
-              T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+              T.type_alias do
+                T.any(
+                  Increase::EntityCreateParams::Joint::Individual::Identification,
+                  Increase::Internal::AnyHash
+                )
+              end
 
             # A method that can be used to verify the individual's identity.
             sig do
@@ -1791,7 +1868,12 @@ module Increase
 
             class DriversLicense < Increase::Internal::Type::BaseModel
               OrHash =
-                T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+                T.type_alias do
+                  T.any(
+                    Increase::EntityCreateParams::Joint::Individual::Identification::DriversLicense,
+                    Increase::Internal::AnyHash
+                  )
+                end
 
               # The driver's license's expiration date in YYYY-MM-DD format.
               sig { returns(Date) }
@@ -1850,7 +1932,12 @@ module Increase
 
             class Other < Increase::Internal::Type::BaseModel
               OrHash =
-                T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+                T.type_alias do
+                  T.any(
+                    Increase::EntityCreateParams::Joint::Individual::Identification::Other,
+                    Increase::Internal::AnyHash
+                  )
+                end
 
               # The two-character ISO 3166-1 code representing the country that issued the
               # document.
@@ -1924,7 +2011,12 @@ module Increase
 
             class Passport < Increase::Internal::Type::BaseModel
               OrHash =
-                T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+                T.type_alias do
+                  T.any(
+                    Increase::EntityCreateParams::Joint::Individual::Identification::Passport,
+                    Increase::Internal::AnyHash
+                  )
+                end
 
               # The country that issued the passport.
               sig { returns(String) }
@@ -1971,7 +2063,12 @@ module Increase
 
       class NaturalPerson < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::EntityCreateParams::NaturalPerson,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # The individual's physical address. Mail receiving locations like PO Boxes and
         # PMB's are disallowed.
@@ -2068,7 +2165,12 @@ module Increase
 
         class Address < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::EntityCreateParams::NaturalPerson::Address,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # The city of the address.
           sig { returns(String) }
@@ -2137,7 +2239,12 @@ module Increase
 
         class Identification < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::EntityCreateParams::NaturalPerson::Identification,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # A method that can be used to verify the individual's identity.
           sig do
@@ -2320,7 +2427,12 @@ module Increase
 
           class DriversLicense < Increase::Internal::Type::BaseModel
             OrHash =
-              T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+              T.type_alias do
+                T.any(
+                  Increase::EntityCreateParams::NaturalPerson::Identification::DriversLicense,
+                  Increase::Internal::AnyHash
+                )
+              end
 
             # The driver's license's expiration date in YYYY-MM-DD format.
             sig { returns(Date) }
@@ -2379,7 +2491,12 @@ module Increase
 
           class Other < Increase::Internal::Type::BaseModel
             OrHash =
-              T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+              T.type_alias do
+                T.any(
+                  Increase::EntityCreateParams::NaturalPerson::Identification::Other,
+                  Increase::Internal::AnyHash
+                )
+              end
 
             # The two-character ISO 3166-1 code representing the country that issued the
             # document.
@@ -2453,7 +2570,12 @@ module Increase
 
           class Passport < Increase::Internal::Type::BaseModel
             OrHash =
-              T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+              T.type_alias do
+                T.any(
+                  Increase::EntityCreateParams::NaturalPerson::Identification::Passport,
+                  Increase::Internal::AnyHash
+                )
+              end
 
             # The country that issued the passport.
             sig { returns(String) }
@@ -2499,7 +2621,12 @@ module Increase
 
       class SupplementalDocument < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::EntityCreateParams::SupplementalDocument,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # The identifier of the File containing the document.
         sig { returns(String) }
@@ -2519,7 +2646,12 @@ module Increase
 
       class ThirdPartyVerification < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::EntityCreateParams::ThirdPartyVerification,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # The reference identifier for the third party verification.
         sig { returns(String) }
@@ -2603,7 +2735,12 @@ module Increase
 
       class Trust < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::EntityCreateParams::Trust,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # The trust's physical address. Mail receiving locations like PO Boxes and PMB's
         # are disallowed.
@@ -2724,7 +2861,12 @@ module Increase
 
         class Address < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::EntityCreateParams::Trust::Address,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # The city of the address.
           sig { returns(String) }
@@ -2830,7 +2972,12 @@ module Increase
 
         class Trustee < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::EntityCreateParams::Trust::Trustee,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # The structure of the trustee.
           sig do
@@ -2922,7 +3069,12 @@ module Increase
 
           class Individual < Increase::Internal::Type::BaseModel
             OrHash =
-              T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+              T.type_alias do
+                T.any(
+                  Increase::EntityCreateParams::Trust::Trustee::Individual,
+                  Increase::Internal::AnyHash
+                )
+              end
 
             # The individual's physical address. Mail receiving locations like PO Boxes and
             # PMB's are disallowed.
@@ -3024,7 +3176,12 @@ module Increase
 
             class Address < Increase::Internal::Type::BaseModel
               OrHash =
-                T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+                T.type_alias do
+                  T.any(
+                    Increase::EntityCreateParams::Trust::Trustee::Individual::Address,
+                    Increase::Internal::AnyHash
+                  )
+                end
 
               # The city of the address.
               sig { returns(String) }
@@ -3093,7 +3250,12 @@ module Increase
 
             class Identification < Increase::Internal::Type::BaseModel
               OrHash =
-                T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+                T.type_alias do
+                  T.any(
+                    Increase::EntityCreateParams::Trust::Trustee::Individual::Identification,
+                    Increase::Internal::AnyHash
+                  )
+                end
 
               # A method that can be used to verify the individual's identity.
               sig do
@@ -3277,7 +3439,10 @@ module Increase
               class DriversLicense < Increase::Internal::Type::BaseModel
                 OrHash =
                   T.type_alias do
-                    T.any(T.self_type, Increase::Internal::AnyHash)
+                    T.any(
+                      Increase::EntityCreateParams::Trust::Trustee::Individual::Identification::DriversLicense,
+                      Increase::Internal::AnyHash
+                    )
                   end
 
                 # The driver's license's expiration date in YYYY-MM-DD format.
@@ -3338,7 +3503,10 @@ module Increase
               class Other < Increase::Internal::Type::BaseModel
                 OrHash =
                   T.type_alias do
-                    T.any(T.self_type, Increase::Internal::AnyHash)
+                    T.any(
+                      Increase::EntityCreateParams::Trust::Trustee::Individual::Identification::Other,
+                      Increase::Internal::AnyHash
+                    )
                   end
 
                 # The two-character ISO 3166-1 code representing the country that issued the
@@ -3414,7 +3582,10 @@ module Increase
               class Passport < Increase::Internal::Type::BaseModel
                 OrHash =
                   T.type_alias do
-                    T.any(T.self_type, Increase::Internal::AnyHash)
+                    T.any(
+                      Increase::EntityCreateParams::Trust::Trustee::Individual::Identification::Passport,
+                      Increase::Internal::AnyHash
+                    )
                   end
 
                 # The country that issued the passport.
@@ -3462,7 +3633,12 @@ module Increase
 
         class Grantor < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::EntityCreateParams::Trust::Grantor,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # The individual's physical address. Mail receiving locations like PO Boxes and
           # PMB's are disallowed.
@@ -3558,7 +3734,12 @@ module Increase
 
           class Address < Increase::Internal::Type::BaseModel
             OrHash =
-              T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+              T.type_alias do
+                T.any(
+                  Increase::EntityCreateParams::Trust::Grantor::Address,
+                  Increase::Internal::AnyHash
+                )
+              end
 
             # The city of the address.
             sig { returns(String) }
@@ -3627,7 +3808,12 @@ module Increase
 
           class Identification < Increase::Internal::Type::BaseModel
             OrHash =
-              T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+              T.type_alias do
+                T.any(
+                  Increase::EntityCreateParams::Trust::Grantor::Identification,
+                  Increase::Internal::AnyHash
+                )
+              end
 
             # A method that can be used to verify the individual's identity.
             sig do
@@ -3810,7 +3996,12 @@ module Increase
 
             class DriversLicense < Increase::Internal::Type::BaseModel
               OrHash =
-                T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+                T.type_alias do
+                  T.any(
+                    Increase::EntityCreateParams::Trust::Grantor::Identification::DriversLicense,
+                    Increase::Internal::AnyHash
+                  )
+                end
 
               # The driver's license's expiration date in YYYY-MM-DD format.
               sig { returns(Date) }
@@ -3869,7 +4060,12 @@ module Increase
 
             class Other < Increase::Internal::Type::BaseModel
               OrHash =
-                T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+                T.type_alias do
+                  T.any(
+                    Increase::EntityCreateParams::Trust::Grantor::Identification::Other,
+                    Increase::Internal::AnyHash
+                  )
+                end
 
               # The two-character ISO 3166-1 code representing the country that issued the
               # document.
@@ -3943,7 +4139,12 @@ module Increase
 
             class Passport < Increase::Internal::Type::BaseModel
               OrHash =
-                T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+                T.type_alias do
+                  T.any(
+                    Increase::EntityCreateParams::Trust::Grantor::Identification::Passport,
+                    Increase::Internal::AnyHash
+                  )
+                end
 
               # The country that issued the passport.
               sig { returns(String) }
diff --git a/rbi/increase/models/entity_list_params.rbi b/rbi/increase/models/entity_list_params.rbi
index 3805c1a93..ad5e31946 100644
--- a/rbi/increase/models/entity_list_params.rbi
+++ b/rbi/increase/models/entity_list_params.rbi
@@ -6,7 +6,10 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(Increase::EntityListParams, Increase::Internal::AnyHash)
+        end
 
       sig { returns(T.nilable(Increase::EntityListParams::CreatedAt)) }
       attr_reader :created_at
@@ -91,7 +94,12 @@ module Increase
 
       class CreatedAt < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::EntityListParams::CreatedAt,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # Return results after this [ISO 8601](https://en.wikipedia.org/wiki/ISO_8601)
         # timestamp.
@@ -160,7 +168,12 @@ module Increase
 
       class Status < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::EntityListParams::Status,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # Filter Entities for those with the specified status or statuses. For GET
         # requests, this should be encoded as a comma-delimited string, such as
diff --git a/rbi/increase/models/entity_retrieve_params.rbi b/rbi/increase/models/entity_retrieve_params.rbi
index 2361a0cc4..d31161e38 100644
--- a/rbi/increase/models/entity_retrieve_params.rbi
+++ b/rbi/increase/models/entity_retrieve_params.rbi
@@ -6,7 +6,10 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(Increase::EntityRetrieveParams, Increase::Internal::AnyHash)
+        end
 
       sig do
         params(request_options: Increase::RequestOptions::OrHash).returns(
diff --git a/rbi/increase/models/entity_supplemental_document.rbi b/rbi/increase/models/entity_supplemental_document.rbi
index c8ac1d451..838a66b56 100644
--- a/rbi/increase/models/entity_supplemental_document.rbi
+++ b/rbi/increase/models/entity_supplemental_document.rbi
@@ -3,7 +3,13 @@
 module Increase
   module Models
     class EntitySupplementalDocument < Increase::Internal::Type::BaseModel
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::EntitySupplementalDocument,
+            Increase::Internal::AnyHash
+          )
+        end
 
       # The [ISO 8601](https://en.wikipedia.org/wiki/ISO_8601) time at which the
       # Supplemental Document was created.
diff --git a/rbi/increase/models/entity_update_address_params.rbi b/rbi/increase/models/entity_update_address_params.rbi
index 864cc330d..dbf7dc77c 100644
--- a/rbi/increase/models/entity_update_address_params.rbi
+++ b/rbi/increase/models/entity_update_address_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::EntityUpdateAddressParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       # The entity's physical address. Mail receiving locations like PO Boxes and PMB's
       # are disallowed.
@@ -47,7 +53,12 @@ module Increase
 
       class Address < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::EntityUpdateAddressParams::Address,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # The city of the address.
         sig { returns(String) }
diff --git a/rbi/increase/models/entity_update_beneficial_owner_address_params.rbi b/rbi/increase/models/entity_update_beneficial_owner_address_params.rbi
index 93e6d661e..579889713 100644
--- a/rbi/increase/models/entity_update_beneficial_owner_address_params.rbi
+++ b/rbi/increase/models/entity_update_beneficial_owner_address_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::EntityUpdateBeneficialOwnerAddressParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       # The individual's physical address. Mail receiving locations like PO Boxes and
       # PMB's are disallowed.
@@ -62,7 +68,12 @@ module Increase
 
       class Address < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::EntityUpdateBeneficialOwnerAddressParams::Address,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # The two-letter ISO 3166-1 alpha-2 code for the country of the address.
         sig { returns(String) }
diff --git a/rbi/increase/models/entity_update_industry_code_params.rbi b/rbi/increase/models/entity_update_industry_code_params.rbi
index 0a828daf6..2aaa60d49 100644
--- a/rbi/increase/models/entity_update_industry_code_params.rbi
+++ b/rbi/increase/models/entity_update_industry_code_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::EntityUpdateIndustryCodeParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       # The North American Industry Classification System (NAICS) code for the
       # corporation's primary line of business. This is a number, like `5132` for
diff --git a/rbi/increase/models/event.rbi b/rbi/increase/models/event.rbi
index 7b39a4b9d..4bb135c39 100644
--- a/rbi/increase/models/event.rbi
+++ b/rbi/increase/models/event.rbi
@@ -3,7 +3,8 @@
 module Increase
   module Models
     class Event < Increase::Internal::Type::BaseModel
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias { T.any(Increase::Event, Increase::Internal::AnyHash) }
 
       # The Event identifier.
       sig { returns(String) }
diff --git a/rbi/increase/models/event_list_params.rbi b/rbi/increase/models/event_list_params.rbi
index ab6a26c1d..f5c0809f3 100644
--- a/rbi/increase/models/event_list_params.rbi
+++ b/rbi/increase/models/event_list_params.rbi
@@ -6,7 +6,10 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(Increase::EventListParams, Increase::Internal::AnyHash)
+        end
 
       # Filter Events to those belonging to the object with the provided identifier.
       sig { returns(T.nilable(String)) }
@@ -85,7 +88,12 @@ module Increase
 
       class Category < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::EventListParams::Category,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # Filter Events for those with the specified category or categories. For GET
         # requests, this should be encoded as a comma-delimited string, such as
@@ -750,7 +758,12 @@ module Increase
 
       class CreatedAt < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::EventListParams::CreatedAt,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # Return results after this [ISO 8601](https://en.wikipedia.org/wiki/ISO_8601)
         # timestamp.
diff --git a/rbi/increase/models/event_retrieve_params.rbi b/rbi/increase/models/event_retrieve_params.rbi
index 04583895f..f1807b1ba 100644
--- a/rbi/increase/models/event_retrieve_params.rbi
+++ b/rbi/increase/models/event_retrieve_params.rbi
@@ -6,7 +6,10 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(Increase::EventRetrieveParams, Increase::Internal::AnyHash)
+        end
 
       sig do
         params(request_options: Increase::RequestOptions::OrHash).returns(
diff --git a/rbi/increase/models/event_subscription.rbi b/rbi/increase/models/event_subscription.rbi
index 1938d15a2..9f7bb0ab3 100644
--- a/rbi/increase/models/event_subscription.rbi
+++ b/rbi/increase/models/event_subscription.rbi
@@ -3,7 +3,10 @@
 module Increase
   module Models
     class EventSubscription < Increase::Internal::Type::BaseModel
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(Increase::EventSubscription, Increase::Internal::AnyHash)
+        end
 
       # The event subscription identifier.
       sig { returns(String) }
diff --git a/rbi/increase/models/event_subscription_create_params.rbi b/rbi/increase/models/event_subscription_create_params.rbi
index 25b84cec0..b7098ad15 100644
--- a/rbi/increase/models/event_subscription_create_params.rbi
+++ b/rbi/increase/models/event_subscription_create_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::EventSubscriptionCreateParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       # The URL you'd like us to send webhooks to.
       sig { returns(String) }
diff --git a/rbi/increase/models/event_subscription_list_params.rbi b/rbi/increase/models/event_subscription_list_params.rbi
index b5e7bfea4..82dd7a03d 100644
--- a/rbi/increase/models/event_subscription_list_params.rbi
+++ b/rbi/increase/models/event_subscription_list_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::EventSubscriptionListParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       # Return the page of entries after this one.
       sig { returns(T.nilable(String)) }
diff --git a/rbi/increase/models/event_subscription_retrieve_params.rbi b/rbi/increase/models/event_subscription_retrieve_params.rbi
index b2ebe5fdb..f8109998b 100644
--- a/rbi/increase/models/event_subscription_retrieve_params.rbi
+++ b/rbi/increase/models/event_subscription_retrieve_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::EventSubscriptionRetrieveParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       sig do
         params(request_options: Increase::RequestOptions::OrHash).returns(
diff --git a/rbi/increase/models/event_subscription_update_params.rbi b/rbi/increase/models/event_subscription_update_params.rbi
index 0efc2d70c..515fde724 100644
--- a/rbi/increase/models/event_subscription_update_params.rbi
+++ b/rbi/increase/models/event_subscription_update_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::EventSubscriptionUpdateParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       # The status to update the Event Subscription with.
       sig do
diff --git a/rbi/increase/models/export.rbi b/rbi/increase/models/export.rbi
index b631eab9c..a370c91f5 100644
--- a/rbi/increase/models/export.rbi
+++ b/rbi/increase/models/export.rbi
@@ -3,7 +3,8 @@
 module Increase
   module Models
     class Export < Increase::Internal::Type::BaseModel
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias { T.any(Increase::Export, Increase::Internal::AnyHash) }
 
       # The Export identifier.
       sig { returns(String) }
diff --git a/rbi/increase/models/export_create_params.rbi b/rbi/increase/models/export_create_params.rbi
index 5eb478e11..51f4b9066 100644
--- a/rbi/increase/models/export_create_params.rbi
+++ b/rbi/increase/models/export_create_params.rbi
@@ -6,7 +6,10 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(Increase::ExportCreateParams, Increase::Internal::AnyHash)
+        end
 
       # The type of Export to create.
       sig { returns(Increase::ExportCreateParams::Category::OrSymbol) }
@@ -201,7 +204,12 @@ module Increase
 
       class AccountStatementOfx < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::ExportCreateParams::AccountStatementOfx,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # The Account to create a statement for.
         sig { returns(String) }
@@ -256,7 +264,12 @@ module Increase
 
         class CreatedAt < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::ExportCreateParams::AccountStatementOfx::CreatedAt,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # Return results after this [ISO 8601](https://en.wikipedia.org/wiki/ISO_8601)
           # timestamp.
@@ -332,7 +345,12 @@ module Increase
 
       class BalanceCsv < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::ExportCreateParams::BalanceCsv,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # Filter exported Transactions to the specified Account.
         sig { returns(T.nilable(String)) }
@@ -398,7 +416,12 @@ module Increase
 
         class CreatedAt < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::ExportCreateParams::BalanceCsv::CreatedAt,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # Return results after this [ISO 8601](https://en.wikipedia.org/wiki/ISO_8601)
           # timestamp.
@@ -474,7 +497,12 @@ module Increase
 
       class BookkeepingAccountBalanceCsv < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::ExportCreateParams::BookkeepingAccountBalanceCsv,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # Filter exported Transactions to the specified Bookkeeping Account.
         sig { returns(T.nilable(String)) }
@@ -532,7 +560,12 @@ module Increase
 
         class CreatedAt < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::ExportCreateParams::BookkeepingAccountBalanceCsv::CreatedAt,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # Return results after this [ISO 8601](https://en.wikipedia.org/wiki/ISO_8601)
           # timestamp.
@@ -608,7 +641,12 @@ module Increase
 
       class EntityCsv < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::ExportCreateParams::EntityCsv,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # Entity statuses to filter by.
         sig do
@@ -645,7 +683,12 @@ module Increase
 
         class Status < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::ExportCreateParams::EntityCsv::Status,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # Entity statuses to filter by. For GET requests, this should be encoded as a
           # comma-delimited string, such as `?in=one,two,three`.
@@ -735,7 +778,12 @@ module Increase
 
       class TransactionCsv < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::ExportCreateParams::TransactionCsv,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # Filter exported Transactions to the specified Account.
         sig { returns(T.nilable(String)) }
@@ -802,7 +850,12 @@ module Increase
 
         class CreatedAt < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::ExportCreateParams::TransactionCsv::CreatedAt,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # Return results after this [ISO 8601](https://en.wikipedia.org/wiki/ISO_8601)
           # timestamp.
diff --git a/rbi/increase/models/export_list_params.rbi b/rbi/increase/models/export_list_params.rbi
index 87f372810..2dae97f77 100644
--- a/rbi/increase/models/export_list_params.rbi
+++ b/rbi/increase/models/export_list_params.rbi
@@ -6,7 +6,10 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(Increase::ExportListParams, Increase::Internal::AnyHash)
+        end
 
       sig { returns(T.nilable(Increase::ExportListParams::Category)) }
       attr_reader :category
@@ -102,7 +105,12 @@ module Increase
 
       class Category < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::ExportListParams::Category,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # Filter Exports for those with the specified category or categories. For GET
         # requests, this should be encoded as a comma-delimited string, such as
@@ -216,7 +224,12 @@ module Increase
 
       class CreatedAt < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::ExportListParams::CreatedAt,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # Return results after this [ISO 8601](https://en.wikipedia.org/wiki/ISO_8601)
         # timestamp.
@@ -285,7 +298,12 @@ module Increase
 
       class Status < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::ExportListParams::Status,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # Filter Exports for those with the specified status or statuses. For GET
         # requests, this should be encoded as a comma-delimited string, such as
diff --git a/rbi/increase/models/export_retrieve_params.rbi b/rbi/increase/models/export_retrieve_params.rbi
index c6ecface4..3dbc2d3d3 100644
--- a/rbi/increase/models/export_retrieve_params.rbi
+++ b/rbi/increase/models/export_retrieve_params.rbi
@@ -6,7 +6,10 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(Increase::ExportRetrieveParams, Increase::Internal::AnyHash)
+        end
 
       sig do
         params(request_options: Increase::RequestOptions::OrHash).returns(
diff --git a/rbi/increase/models/external_account.rbi b/rbi/increase/models/external_account.rbi
index f3440b3bb..8da88c588 100644
--- a/rbi/increase/models/external_account.rbi
+++ b/rbi/increase/models/external_account.rbi
@@ -3,7 +3,10 @@
 module Increase
   module Models
     class ExternalAccount < Increase::Internal::Type::BaseModel
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(Increase::ExternalAccount, Increase::Internal::AnyHash)
+        end
 
       # The External Account's identifier.
       sig { returns(String) }
diff --git a/rbi/increase/models/external_account_create_params.rbi b/rbi/increase/models/external_account_create_params.rbi
index d5abbb5c7..900e27f5e 100644
--- a/rbi/increase/models/external_account_create_params.rbi
+++ b/rbi/increase/models/external_account_create_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::ExternalAccountCreateParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       # The account number for the destination account.
       sig { returns(String) }
diff --git a/rbi/increase/models/external_account_list_params.rbi b/rbi/increase/models/external_account_list_params.rbi
index a129cb40f..88a6308e1 100644
--- a/rbi/increase/models/external_account_list_params.rbi
+++ b/rbi/increase/models/external_account_list_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::ExternalAccountListParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       # Return the page of entries after this one.
       sig { returns(T.nilable(String)) }
@@ -93,7 +99,12 @@ module Increase
 
       class Status < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::ExternalAccountListParams::Status,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # Filter External Accounts for those with the specified status or statuses. For
         # GET requests, this should be encoded as a comma-delimited string, such as
diff --git a/rbi/increase/models/external_account_retrieve_params.rbi b/rbi/increase/models/external_account_retrieve_params.rbi
index 46fbd7336..b005c8f67 100644
--- a/rbi/increase/models/external_account_retrieve_params.rbi
+++ b/rbi/increase/models/external_account_retrieve_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::ExternalAccountRetrieveParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       sig do
         params(request_options: Increase::RequestOptions::OrHash).returns(
diff --git a/rbi/increase/models/external_account_update_params.rbi b/rbi/increase/models/external_account_update_params.rbi
index cd4815c3b..de25ebbb2 100644
--- a/rbi/increase/models/external_account_update_params.rbi
+++ b/rbi/increase/models/external_account_update_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::ExternalAccountUpdateParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       # The type of entity that owns the External Account.
       sig do
diff --git a/rbi/increase/models/file.rbi b/rbi/increase/models/file.rbi
index 73455bf3e..f7dc62f18 100644
--- a/rbi/increase/models/file.rbi
+++ b/rbi/increase/models/file.rbi
@@ -3,7 +3,8 @@
 module Increase
   module Models
     class File < Increase::Internal::Type::BaseModel
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias { T.any(Increase::File, Increase::Internal::AnyHash) }
 
       # The File's identifier.
       sig { returns(String) }
diff --git a/rbi/increase/models/file_create_params.rbi b/rbi/increase/models/file_create_params.rbi
index dd0e8e24f..4eaac5b30 100644
--- a/rbi/increase/models/file_create_params.rbi
+++ b/rbi/increase/models/file_create_params.rbi
@@ -6,7 +6,10 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(Increase::FileCreateParams, Increase::Internal::AnyHash)
+        end
 
       # The file contents. This should follow the specifications of
       # [RFC 7578](https://datatracker.ietf.org/doc/html/rfc7578) which defines file
diff --git a/rbi/increase/models/file_link.rbi b/rbi/increase/models/file_link.rbi
index 8c2e127f7..65c85b1b7 100644
--- a/rbi/increase/models/file_link.rbi
+++ b/rbi/increase/models/file_link.rbi
@@ -3,7 +3,8 @@
 module Increase
   module Models
     class FileLink < Increase::Internal::Type::BaseModel
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias { T.any(Increase::FileLink, Increase::Internal::AnyHash) }
 
       # The File Link identifier.
       sig { returns(String) }
diff --git a/rbi/increase/models/file_link_create_params.rbi b/rbi/increase/models/file_link_create_params.rbi
index c9d358eef..8db27ca5b 100644
--- a/rbi/increase/models/file_link_create_params.rbi
+++ b/rbi/increase/models/file_link_create_params.rbi
@@ -6,7 +6,10 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(Increase::FileLinkCreateParams, Increase::Internal::AnyHash)
+        end
 
       # The File to create a File Link for.
       sig { returns(String) }
diff --git a/rbi/increase/models/file_list_params.rbi b/rbi/increase/models/file_list_params.rbi
index a9de1564a..f90787b30 100644
--- a/rbi/increase/models/file_list_params.rbi
+++ b/rbi/increase/models/file_list_params.rbi
@@ -6,7 +6,10 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(Increase::FileListParams, Increase::Internal::AnyHash)
+        end
 
       sig { returns(T.nilable(Increase::FileListParams::CreatedAt)) }
       attr_reader :created_at
@@ -91,7 +94,12 @@ module Increase
 
       class CreatedAt < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::FileListParams::CreatedAt,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # Return results after this [ISO 8601](https://en.wikipedia.org/wiki/ISO_8601)
         # timestamp.
@@ -160,7 +168,12 @@ module Increase
 
       class Purpose < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::FileListParams::Purpose,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # Filter Files for those with the specified purpose or purposes. For GET requests,
         # this should be encoded as a comma-delimited string, such as `?in=one,two,three`.
diff --git a/rbi/increase/models/file_retrieve_params.rbi b/rbi/increase/models/file_retrieve_params.rbi
index 5584a216d..83b26fcda 100644
--- a/rbi/increase/models/file_retrieve_params.rbi
+++ b/rbi/increase/models/file_retrieve_params.rbi
@@ -6,7 +6,10 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(Increase::FileRetrieveParams, Increase::Internal::AnyHash)
+        end
 
       sig do
         params(request_options: Increase::RequestOptions::OrHash).returns(
diff --git a/rbi/increase/models/group.rbi b/rbi/increase/models/group.rbi
index 739ba08b2..35fb05475 100644
--- a/rbi/increase/models/group.rbi
+++ b/rbi/increase/models/group.rbi
@@ -3,7 +3,8 @@
 module Increase
   module Models
     class Group < Increase::Internal::Type::BaseModel
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias { T.any(Increase::Group, Increase::Internal::AnyHash) }
 
       # The Group identifier.
       sig { returns(String) }
diff --git a/rbi/increase/models/group_retrieve_params.rbi b/rbi/increase/models/group_retrieve_params.rbi
index 6e6b208c2..954c54938 100644
--- a/rbi/increase/models/group_retrieve_params.rbi
+++ b/rbi/increase/models/group_retrieve_params.rbi
@@ -6,7 +6,10 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(Increase::GroupRetrieveParams, Increase::Internal::AnyHash)
+        end
 
       sig do
         params(request_options: Increase::RequestOptions::OrHash).returns(
diff --git a/rbi/increase/models/inbound_ach_transfer.rbi b/rbi/increase/models/inbound_ach_transfer.rbi
index ee035a05e..255f03d35 100644
--- a/rbi/increase/models/inbound_ach_transfer.rbi
+++ b/rbi/increase/models/inbound_ach_transfer.rbi
@@ -3,7 +3,10 @@
 module Increase
   module Models
     class InboundACHTransfer < Increase::Internal::Type::BaseModel
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(Increase::InboundACHTransfer, Increase::Internal::AnyHash)
+        end
 
       # The inbound ACH transfer's identifier.
       sig { returns(String) }
@@ -337,7 +340,12 @@ module Increase
 
       class Acceptance < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::InboundACHTransfer::Acceptance,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # The time at which the transfer was accepted.
         sig { returns(Time) }
@@ -368,7 +376,12 @@ module Increase
 
       class Addenda < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::InboundACHTransfer::Addenda,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # The type of addendum.
         sig do
@@ -449,7 +462,12 @@ module Increase
 
         class Freeform < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::InboundACHTransfer::Addenda::Freeform,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # Each entry represents an addendum received from the originator.
           sig do
@@ -489,7 +507,12 @@ module Increase
 
           class Entry < Increase::Internal::Type::BaseModel
             OrHash =
-              T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+              T.type_alias do
+                T.any(
+                  Increase::InboundACHTransfer::Addenda::Freeform::Entry,
+                  Increase::Internal::AnyHash
+                )
+              end
 
             # The payment related information passed in the addendum.
             sig { returns(String) }
@@ -515,7 +538,12 @@ module Increase
 
       class Decline < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::InboundACHTransfer::Decline,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # The time at which the transfer was declined.
         sig { returns(Time) }
@@ -770,7 +798,12 @@ module Increase
 
       class InternationalAddenda < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::InboundACHTransfer::InternationalAddenda,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # The [ISO 3166](https://en.wikipedia.org/wiki/ISO_3166-1_alpha-2), Alpha-2
         # country code of the destination country.
@@ -1476,7 +1509,12 @@ module Increase
 
       class NotificationOfChange < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::InboundACHTransfer::NotificationOfChange,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # The new account number provided in the notification of change.
         sig { returns(T.nilable(String)) }
@@ -1682,7 +1720,12 @@ module Increase
 
       class TransferReturn < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::InboundACHTransfer::TransferReturn,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # The reason for the transfer return.
         sig do
diff --git a/rbi/increase/models/inbound_ach_transfer_create_notification_of_change_params.rbi b/rbi/increase/models/inbound_ach_transfer_create_notification_of_change_params.rbi
index f7808c8e8..68a304a63 100644
--- a/rbi/increase/models/inbound_ach_transfer_create_notification_of_change_params.rbi
+++ b/rbi/increase/models/inbound_ach_transfer_create_notification_of_change_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::InboundACHTransferCreateNotificationOfChangeParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       # The updated account number to send in the notification of change.
       sig { returns(T.nilable(String)) }
diff --git a/rbi/increase/models/inbound_ach_transfer_decline_params.rbi b/rbi/increase/models/inbound_ach_transfer_decline_params.rbi
index 06b5644a5..2bcb25112 100644
--- a/rbi/increase/models/inbound_ach_transfer_decline_params.rbi
+++ b/rbi/increase/models/inbound_ach_transfer_decline_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::InboundACHTransferDeclineParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       # The reason why this transfer will be returned. If this parameter is unset, the
       # return codes will be `payment_stopped` for debits and
diff --git a/rbi/increase/models/inbound_ach_transfer_list_params.rbi b/rbi/increase/models/inbound_ach_transfer_list_params.rbi
index 713a097c7..6efe46b35 100644
--- a/rbi/increase/models/inbound_ach_transfer_list_params.rbi
+++ b/rbi/increase/models/inbound_ach_transfer_list_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::InboundACHTransferListParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       # Filter Inbound ACH Transfers to ones belonging to the specified Account.
       sig { returns(T.nilable(String)) }
@@ -104,7 +110,12 @@ module Increase
 
       class CreatedAt < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::InboundACHTransferListParams::CreatedAt,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # Return results after this [ISO 8601](https://en.wikipedia.org/wiki/ISO_8601)
         # timestamp.
@@ -173,7 +184,12 @@ module Increase
 
       class Status < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::InboundACHTransferListParams::Status,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # Filter Inbound ACH Transfers to those with the specified status. For GET
         # requests, this should be encoded as a comma-delimited string, such as
diff --git a/rbi/increase/models/inbound_ach_transfer_retrieve_params.rbi b/rbi/increase/models/inbound_ach_transfer_retrieve_params.rbi
index 2455c0060..fd60b4cec 100644
--- a/rbi/increase/models/inbound_ach_transfer_retrieve_params.rbi
+++ b/rbi/increase/models/inbound_ach_transfer_retrieve_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::InboundACHTransferRetrieveParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       sig do
         params(request_options: Increase::RequestOptions::OrHash).returns(
diff --git a/rbi/increase/models/inbound_ach_transfer_transfer_return_params.rbi b/rbi/increase/models/inbound_ach_transfer_transfer_return_params.rbi
index 2f79909a3..a5153c6ad 100644
--- a/rbi/increase/models/inbound_ach_transfer_transfer_return_params.rbi
+++ b/rbi/increase/models/inbound_ach_transfer_transfer_return_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::InboundACHTransferTransferReturnParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       # The reason why this transfer will be returned. The most usual return codes are
       # `payment_stopped` for debits and `credit_entry_refused_by_receiver` for credits.
diff --git a/rbi/increase/models/inbound_check_deposit.rbi b/rbi/increase/models/inbound_check_deposit.rbi
index 505766b03..fa67cb5fb 100644
--- a/rbi/increase/models/inbound_check_deposit.rbi
+++ b/rbi/increase/models/inbound_check_deposit.rbi
@@ -3,7 +3,10 @@
 module Increase
   module Models
     class InboundCheckDeposit < Increase::Internal::Type::BaseModel
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(Increase::InboundCheckDeposit, Increase::Internal::AnyHash)
+        end
 
       # The deposit's identifier.
       sig { returns(String) }
@@ -229,7 +232,12 @@ module Increase
 
       class Adjustment < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::InboundCheckDeposit::Adjustment,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # The time at which the return adjustment was received.
         sig { returns(Time) }
@@ -374,7 +382,12 @@ module Increase
 
       class DepositReturn < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::InboundCheckDeposit::DepositReturn,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # The reason the deposit was returned.
         sig do
diff --git a/rbi/increase/models/inbound_check_deposit_decline_params.rbi b/rbi/increase/models/inbound_check_deposit_decline_params.rbi
index 09579d048..9a447d487 100644
--- a/rbi/increase/models/inbound_check_deposit_decline_params.rbi
+++ b/rbi/increase/models/inbound_check_deposit_decline_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::InboundCheckDepositDeclineParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       sig do
         params(request_options: Increase::RequestOptions::OrHash).returns(
diff --git a/rbi/increase/models/inbound_check_deposit_list_params.rbi b/rbi/increase/models/inbound_check_deposit_list_params.rbi
index 3a7fb92b2..018965f8b 100644
--- a/rbi/increase/models/inbound_check_deposit_list_params.rbi
+++ b/rbi/increase/models/inbound_check_deposit_list_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::InboundCheckDepositListParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       # Filter Inbound Check Deposits to those belonging to the specified Account.
       sig { returns(T.nilable(String)) }
@@ -94,7 +100,12 @@ module Increase
 
       class CreatedAt < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::InboundCheckDepositListParams::CreatedAt,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # Return results after this [ISO 8601](https://en.wikipedia.org/wiki/ISO_8601)
         # timestamp.
diff --git a/rbi/increase/models/inbound_check_deposit_retrieve_params.rbi b/rbi/increase/models/inbound_check_deposit_retrieve_params.rbi
index 998464359..72e3a8697 100644
--- a/rbi/increase/models/inbound_check_deposit_retrieve_params.rbi
+++ b/rbi/increase/models/inbound_check_deposit_retrieve_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::InboundCheckDepositRetrieveParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       sig do
         params(request_options: Increase::RequestOptions::OrHash).returns(
diff --git a/rbi/increase/models/inbound_check_deposit_return_params.rbi b/rbi/increase/models/inbound_check_deposit_return_params.rbi
index 18590d590..7fc2fae78 100644
--- a/rbi/increase/models/inbound_check_deposit_return_params.rbi
+++ b/rbi/increase/models/inbound_check_deposit_return_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::InboundCheckDepositReturnParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       # The reason to return the Inbound Check Deposit.
       sig do
diff --git a/rbi/increase/models/inbound_mail_item.rbi b/rbi/increase/models/inbound_mail_item.rbi
index 131f1fa65..2a35d8bf3 100644
--- a/rbi/increase/models/inbound_mail_item.rbi
+++ b/rbi/increase/models/inbound_mail_item.rbi
@@ -3,7 +3,10 @@
 module Increase
   module Models
     class InboundMailItem < Increase::Internal::Type::BaseModel
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(Increase::InboundMailItem, Increase::Internal::AnyHash)
+        end
 
       # The Inbound Mail Item identifier.
       sig { returns(String) }
diff --git a/rbi/increase/models/inbound_mail_item_list_params.rbi b/rbi/increase/models/inbound_mail_item_list_params.rbi
index c9f935f2f..4a95019d6 100644
--- a/rbi/increase/models/inbound_mail_item_list_params.rbi
+++ b/rbi/increase/models/inbound_mail_item_list_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::InboundMailItemListParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       sig { returns(T.nilable(Increase::InboundMailItemListParams::CreatedAt)) }
       attr_reader :created_at
@@ -78,7 +84,12 @@ module Increase
 
       class CreatedAt < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::InboundMailItemListParams::CreatedAt,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # Return results after this [ISO 8601](https://en.wikipedia.org/wiki/ISO_8601)
         # timestamp.
diff --git a/rbi/increase/models/inbound_mail_item_retrieve_params.rbi b/rbi/increase/models/inbound_mail_item_retrieve_params.rbi
index b901219a9..0e52a9a28 100644
--- a/rbi/increase/models/inbound_mail_item_retrieve_params.rbi
+++ b/rbi/increase/models/inbound_mail_item_retrieve_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::InboundMailItemRetrieveParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       sig do
         params(request_options: Increase::RequestOptions::OrHash).returns(
diff --git a/rbi/increase/models/inbound_real_time_payments_transfer.rbi b/rbi/increase/models/inbound_real_time_payments_transfer.rbi
index ae0c49fe3..cdf95c49f 100644
--- a/rbi/increase/models/inbound_real_time_payments_transfer.rbi
+++ b/rbi/increase/models/inbound_real_time_payments_transfer.rbi
@@ -3,7 +3,13 @@
 module Increase
   module Models
     class InboundRealTimePaymentsTransfer < Increase::Internal::Type::BaseModel
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::InboundRealTimePaymentsTransfer,
+            Increase::Internal::AnyHash
+          )
+        end
 
       # The inbound Real-Time Payments transfer's identifier.
       sig { returns(String) }
@@ -207,7 +213,12 @@ module Increase
 
       class Confirmation < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::InboundRealTimePaymentsTransfer::Confirmation,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # The time at which the transfer was confirmed.
         sig { returns(Time) }
@@ -302,7 +313,12 @@ module Increase
 
       class Decline < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::InboundRealTimePaymentsTransfer::Decline,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # The time at which the transfer was declined.
         sig { returns(Time) }
diff --git a/rbi/increase/models/inbound_real_time_payments_transfer_list_params.rbi b/rbi/increase/models/inbound_real_time_payments_transfer_list_params.rbi
index 8d47e4c67..1864cf89d 100644
--- a/rbi/increase/models/inbound_real_time_payments_transfer_list_params.rbi
+++ b/rbi/increase/models/inbound_real_time_payments_transfer_list_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::InboundRealTimePaymentsTransferListParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       # Filter Inbound Real-Time Payments Transfers to those belonging to the specified
       # Account.
@@ -102,7 +108,12 @@ module Increase
 
       class CreatedAt < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::InboundRealTimePaymentsTransferListParams::CreatedAt,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # Return results after this [ISO 8601](https://en.wikipedia.org/wiki/ISO_8601)
         # timestamp.
diff --git a/rbi/increase/models/inbound_real_time_payments_transfer_retrieve_params.rbi b/rbi/increase/models/inbound_real_time_payments_transfer_retrieve_params.rbi
index 2c1ddcf12..ece98b243 100644
--- a/rbi/increase/models/inbound_real_time_payments_transfer_retrieve_params.rbi
+++ b/rbi/increase/models/inbound_real_time_payments_transfer_retrieve_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::InboundRealTimePaymentsTransferRetrieveParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       sig do
         params(request_options: Increase::RequestOptions::OrHash).returns(
diff --git a/rbi/increase/models/inbound_wire_drawdown_request.rbi b/rbi/increase/models/inbound_wire_drawdown_request.rbi
index 12671a590..53683137b 100644
--- a/rbi/increase/models/inbound_wire_drawdown_request.rbi
+++ b/rbi/increase/models/inbound_wire_drawdown_request.rbi
@@ -3,7 +3,13 @@
 module Increase
   module Models
     class InboundWireDrawdownRequest < Increase::Internal::Type::BaseModel
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::InboundWireDrawdownRequest,
+            Increase::Internal::AnyHash
+          )
+        end
 
       # The Wire drawdown request identifier.
       sig { returns(String) }
diff --git a/rbi/increase/models/inbound_wire_drawdown_request_list_params.rbi b/rbi/increase/models/inbound_wire_drawdown_request_list_params.rbi
index e73ef85e8..4ba7184f0 100644
--- a/rbi/increase/models/inbound_wire_drawdown_request_list_params.rbi
+++ b/rbi/increase/models/inbound_wire_drawdown_request_list_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::InboundWireDrawdownRequestListParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       # Return the page of entries after this one.
       sig { returns(T.nilable(String)) }
diff --git a/rbi/increase/models/inbound_wire_drawdown_request_retrieve_params.rbi b/rbi/increase/models/inbound_wire_drawdown_request_retrieve_params.rbi
index 7038b4346..7817b9403 100644
--- a/rbi/increase/models/inbound_wire_drawdown_request_retrieve_params.rbi
+++ b/rbi/increase/models/inbound_wire_drawdown_request_retrieve_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::InboundWireDrawdownRequestRetrieveParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       sig do
         params(request_options: Increase::RequestOptions::OrHash).returns(
diff --git a/rbi/increase/models/inbound_wire_transfer.rbi b/rbi/increase/models/inbound_wire_transfer.rbi
index 0339dcf45..aa12ebbc9 100644
--- a/rbi/increase/models/inbound_wire_transfer.rbi
+++ b/rbi/increase/models/inbound_wire_transfer.rbi
@@ -3,7 +3,10 @@
 module Increase
   module Models
     class InboundWireTransfer < Increase::Internal::Type::BaseModel
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(Increase::InboundWireTransfer, Increase::Internal::AnyHash)
+        end
 
       # The inbound wire transfer's identifier.
       sig { returns(String) }
@@ -253,7 +256,12 @@ module Increase
 
       class Reversal < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::InboundWireTransfer::Reversal,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # The reason for the reversal.
         sig do
diff --git a/rbi/increase/models/inbound_wire_transfer_list_params.rbi b/rbi/increase/models/inbound_wire_transfer_list_params.rbi
index 7889095d2..facdd8579 100644
--- a/rbi/increase/models/inbound_wire_transfer_list_params.rbi
+++ b/rbi/increase/models/inbound_wire_transfer_list_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::InboundWireTransferListParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       # Filter Inbound Wire Transfers to ones belonging to the specified Account.
       sig { returns(T.nilable(String)) }
@@ -107,7 +113,12 @@ module Increase
 
       class CreatedAt < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::InboundWireTransferListParams::CreatedAt,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # Return results after this [ISO 8601](https://en.wikipedia.org/wiki/ISO_8601)
         # timestamp.
@@ -176,7 +187,12 @@ module Increase
 
       class Status < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::InboundWireTransferListParams::Status,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # Filter Inbound Wire Transfers to those with the specified status. For GET
         # requests, this should be encoded as a comma-delimited string, such as
diff --git a/rbi/increase/models/inbound_wire_transfer_retrieve_params.rbi b/rbi/increase/models/inbound_wire_transfer_retrieve_params.rbi
index c2d7681e5..9a2e2065a 100644
--- a/rbi/increase/models/inbound_wire_transfer_retrieve_params.rbi
+++ b/rbi/increase/models/inbound_wire_transfer_retrieve_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::InboundWireTransferRetrieveParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       sig do
         params(request_options: Increase::RequestOptions::OrHash).returns(
diff --git a/rbi/increase/models/inbound_wire_transfer_reverse_params.rbi b/rbi/increase/models/inbound_wire_transfer_reverse_params.rbi
index af7480d53..6c8ad294f 100644
--- a/rbi/increase/models/inbound_wire_transfer_reverse_params.rbi
+++ b/rbi/increase/models/inbound_wire_transfer_reverse_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::InboundWireTransferReverseParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       # Reason for the reversal.
       sig do
diff --git a/rbi/increase/models/intrafi_account_enrollment.rbi b/rbi/increase/models/intrafi_account_enrollment.rbi
index 83236f7c2..131b9b468 100644
--- a/rbi/increase/models/intrafi_account_enrollment.rbi
+++ b/rbi/increase/models/intrafi_account_enrollment.rbi
@@ -3,7 +3,10 @@
 module Increase
   module Models
     class IntrafiAccountEnrollment < Increase::Internal::Type::BaseModel
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(Increase::IntrafiAccountEnrollment, Increase::Internal::AnyHash)
+        end
 
       # The identifier of this enrollment at IntraFi.
       sig { returns(String) }
diff --git a/rbi/increase/models/intrafi_account_enrollment_create_params.rbi b/rbi/increase/models/intrafi_account_enrollment_create_params.rbi
index 4443dde62..ad8da6900 100644
--- a/rbi/increase/models/intrafi_account_enrollment_create_params.rbi
+++ b/rbi/increase/models/intrafi_account_enrollment_create_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::IntrafiAccountEnrollmentCreateParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       # The identifier for the account to be added to IntraFi.
       sig { returns(String) }
diff --git a/rbi/increase/models/intrafi_account_enrollment_list_params.rbi b/rbi/increase/models/intrafi_account_enrollment_list_params.rbi
index 83955a132..1576a6dc2 100644
--- a/rbi/increase/models/intrafi_account_enrollment_list_params.rbi
+++ b/rbi/increase/models/intrafi_account_enrollment_list_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::IntrafiAccountEnrollmentListParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       # Filter IntraFi Account Enrollments to the one belonging to an account.
       sig { returns(T.nilable(String)) }
@@ -97,7 +103,12 @@ module Increase
 
       class Status < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::IntrafiAccountEnrollmentListParams::Status,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # Filter IntraFi Account Enrollments for those with the specified status or
         # statuses. For GET requests, this should be encoded as a comma-delimited string,
diff --git a/rbi/increase/models/intrafi_account_enrollment_retrieve_params.rbi b/rbi/increase/models/intrafi_account_enrollment_retrieve_params.rbi
index aa8fcc9ca..17e52251c 100644
--- a/rbi/increase/models/intrafi_account_enrollment_retrieve_params.rbi
+++ b/rbi/increase/models/intrafi_account_enrollment_retrieve_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::IntrafiAccountEnrollmentRetrieveParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       sig do
         params(request_options: Increase::RequestOptions::OrHash).returns(
diff --git a/rbi/increase/models/intrafi_account_enrollment_unenroll_params.rbi b/rbi/increase/models/intrafi_account_enrollment_unenroll_params.rbi
index 5335bc629..621378efe 100644
--- a/rbi/increase/models/intrafi_account_enrollment_unenroll_params.rbi
+++ b/rbi/increase/models/intrafi_account_enrollment_unenroll_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::IntrafiAccountEnrollmentUnenrollParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       sig do
         params(request_options: Increase::RequestOptions::OrHash).returns(
diff --git a/rbi/increase/models/intrafi_balance.rbi b/rbi/increase/models/intrafi_balance.rbi
index a3400fe32..617b5169d 100644
--- a/rbi/increase/models/intrafi_balance.rbi
+++ b/rbi/increase/models/intrafi_balance.rbi
@@ -3,7 +3,10 @@
 module Increase
   module Models
     class IntrafiBalance < Increase::Internal::Type::BaseModel
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(Increase::IntrafiBalance, Increase::Internal::AnyHash)
+        end
 
       # The identifier of this balance.
       sig { returns(String) }
@@ -83,7 +86,12 @@ module Increase
 
       class Balance < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::IntrafiBalance::Balance,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # The identifier of this balance.
         sig { returns(String) }
@@ -162,7 +170,12 @@ module Increase
 
         class BankLocation < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::IntrafiBalance::Balance::BankLocation,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # The bank's city.
           sig { returns(String) }
diff --git a/rbi/increase/models/intrafi_balance_intrafi_balance_params.rbi b/rbi/increase/models/intrafi_balance_intrafi_balance_params.rbi
index 822ef0b38..61b7985ea 100644
--- a/rbi/increase/models/intrafi_balance_intrafi_balance_params.rbi
+++ b/rbi/increase/models/intrafi_balance_intrafi_balance_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::IntrafiBalanceIntrafiBalanceParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       sig do
         params(request_options: Increase::RequestOptions::OrHash).returns(
diff --git a/rbi/increase/models/intrafi_exclusion.rbi b/rbi/increase/models/intrafi_exclusion.rbi
index b7f67f7d2..12b8d3705 100644
--- a/rbi/increase/models/intrafi_exclusion.rbi
+++ b/rbi/increase/models/intrafi_exclusion.rbi
@@ -3,7 +3,10 @@
 module Increase
   module Models
     class IntrafiExclusion < Increase::Internal::Type::BaseModel
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(Increase::IntrafiExclusion, Increase::Internal::AnyHash)
+        end
 
       # The identifier of this exclusion request.
       sig { returns(String) }
diff --git a/rbi/increase/models/intrafi_exclusion_archive_params.rbi b/rbi/increase/models/intrafi_exclusion_archive_params.rbi
index 215fa9e7b..a08def803 100644
--- a/rbi/increase/models/intrafi_exclusion_archive_params.rbi
+++ b/rbi/increase/models/intrafi_exclusion_archive_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::IntrafiExclusionArchiveParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       sig do
         params(request_options: Increase::RequestOptions::OrHash).returns(
diff --git a/rbi/increase/models/intrafi_exclusion_create_params.rbi b/rbi/increase/models/intrafi_exclusion_create_params.rbi
index a1d18bd04..017ce8f4d 100644
--- a/rbi/increase/models/intrafi_exclusion_create_params.rbi
+++ b/rbi/increase/models/intrafi_exclusion_create_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::IntrafiExclusionCreateParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       # The name of the financial institution to be excluded.
       sig { returns(String) }
diff --git a/rbi/increase/models/intrafi_exclusion_list_params.rbi b/rbi/increase/models/intrafi_exclusion_list_params.rbi
index 9f6ff5654..4b79d7ceb 100644
--- a/rbi/increase/models/intrafi_exclusion_list_params.rbi
+++ b/rbi/increase/models/intrafi_exclusion_list_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::IntrafiExclusionListParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       # Return the page of entries after this one.
       sig { returns(T.nilable(String)) }
diff --git a/rbi/increase/models/intrafi_exclusion_retrieve_params.rbi b/rbi/increase/models/intrafi_exclusion_retrieve_params.rbi
index 028d0d31e..6fce82074 100644
--- a/rbi/increase/models/intrafi_exclusion_retrieve_params.rbi
+++ b/rbi/increase/models/intrafi_exclusion_retrieve_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::IntrafiExclusionRetrieveParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       sig do
         params(request_options: Increase::RequestOptions::OrHash).returns(
diff --git a/rbi/increase/models/lockbox.rbi b/rbi/increase/models/lockbox.rbi
index 97459dfb3..b4863bd0a 100644
--- a/rbi/increase/models/lockbox.rbi
+++ b/rbi/increase/models/lockbox.rbi
@@ -3,7 +3,8 @@
 module Increase
   module Models
     class Lockbox < Increase::Internal::Type::BaseModel
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias { T.any(Increase::Lockbox, Increase::Internal::AnyHash) }
 
       # The Lockbox identifier.
       sig { returns(String) }
@@ -111,7 +112,9 @@ module Increase
 
       class Address < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(Increase::Lockbox::Address, Increase::Internal::AnyHash)
+          end
 
         # The city of the address.
         sig { returns(String) }
diff --git a/rbi/increase/models/lockbox_create_params.rbi b/rbi/increase/models/lockbox_create_params.rbi
index 6b9f45cbb..33938be18 100644
--- a/rbi/increase/models/lockbox_create_params.rbi
+++ b/rbi/increase/models/lockbox_create_params.rbi
@@ -6,7 +6,10 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(Increase::LockboxCreateParams, Increase::Internal::AnyHash)
+        end
 
       # The Account checks sent to this Lockbox should be deposited into.
       sig { returns(String) }
diff --git a/rbi/increase/models/lockbox_list_params.rbi b/rbi/increase/models/lockbox_list_params.rbi
index be71ea8a0..f9fb63c43 100644
--- a/rbi/increase/models/lockbox_list_params.rbi
+++ b/rbi/increase/models/lockbox_list_params.rbi
@@ -6,7 +6,10 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(Increase::LockboxListParams, Increase::Internal::AnyHash)
+        end
 
       # Filter Lockboxes to those associated with the provided Account.
       sig { returns(T.nilable(String)) }
@@ -93,7 +96,12 @@ module Increase
 
       class CreatedAt < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::LockboxListParams::CreatedAt,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # Return results after this [ISO 8601](https://en.wikipedia.org/wiki/ISO_8601)
         # timestamp.
diff --git a/rbi/increase/models/lockbox_retrieve_params.rbi b/rbi/increase/models/lockbox_retrieve_params.rbi
index b87a3c854..98f350915 100644
--- a/rbi/increase/models/lockbox_retrieve_params.rbi
+++ b/rbi/increase/models/lockbox_retrieve_params.rbi
@@ -6,7 +6,10 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(Increase::LockboxRetrieveParams, Increase::Internal::AnyHash)
+        end
 
       sig do
         params(request_options: Increase::RequestOptions::OrHash).returns(
diff --git a/rbi/increase/models/lockbox_update_params.rbi b/rbi/increase/models/lockbox_update_params.rbi
index 76352d4ea..4bc569f28 100644
--- a/rbi/increase/models/lockbox_update_params.rbi
+++ b/rbi/increase/models/lockbox_update_params.rbi
@@ -6,7 +6,10 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(Increase::LockboxUpdateParams, Increase::Internal::AnyHash)
+        end
 
       # The description you choose for the Lockbox.
       sig { returns(T.nilable(String)) }
diff --git a/rbi/increase/models/oauth_application.rbi b/rbi/increase/models/oauth_application.rbi
index 1df64b7fa..ca2721cb9 100644
--- a/rbi/increase/models/oauth_application.rbi
+++ b/rbi/increase/models/oauth_application.rbi
@@ -3,7 +3,10 @@
 module Increase
   module Models
     class OAuthApplication < Increase::Internal::Type::BaseModel
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(Increase::OAuthApplication, Increase::Internal::AnyHash)
+        end
 
       # The OAuth Application's identifier.
       sig { returns(String) }
diff --git a/rbi/increase/models/oauth_application_list_params.rbi b/rbi/increase/models/oauth_application_list_params.rbi
index b8ecf9cda..ad3c6b838 100644
--- a/rbi/increase/models/oauth_application_list_params.rbi
+++ b/rbi/increase/models/oauth_application_list_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::OAuthApplicationListParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       sig do
         returns(T.nilable(Increase::OAuthApplicationListParams::CreatedAt))
@@ -82,7 +88,12 @@ module Increase
 
       class CreatedAt < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::OAuthApplicationListParams::CreatedAt,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # Return results after this [ISO 8601](https://en.wikipedia.org/wiki/ISO_8601)
         # timestamp.
@@ -151,7 +162,12 @@ module Increase
 
       class Status < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::OAuthApplicationListParams::Status,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # Return results whose value is in the provided list. For GET requests, this
         # should be encoded as a comma-delimited string, such as `?in=one,two,three`.
diff --git a/rbi/increase/models/oauth_application_retrieve_params.rbi b/rbi/increase/models/oauth_application_retrieve_params.rbi
index e241848b6..d52131e53 100644
--- a/rbi/increase/models/oauth_application_retrieve_params.rbi
+++ b/rbi/increase/models/oauth_application_retrieve_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::OAuthApplicationRetrieveParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       sig do
         params(request_options: Increase::RequestOptions::OrHash).returns(
diff --git a/rbi/increase/models/oauth_connection.rbi b/rbi/increase/models/oauth_connection.rbi
index 3570c2466..22b7a4f20 100644
--- a/rbi/increase/models/oauth_connection.rbi
+++ b/rbi/increase/models/oauth_connection.rbi
@@ -3,7 +3,10 @@
 module Increase
   module Models
     class OAuthConnection < Increase::Internal::Type::BaseModel
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(Increase::OAuthConnection, Increase::Internal::AnyHash)
+        end
 
       # The OAuth Connection's identifier.
       sig { returns(String) }
diff --git a/rbi/increase/models/oauth_connection_list_params.rbi b/rbi/increase/models/oauth_connection_list_params.rbi
index 00fea70dc..08cc756ad 100644
--- a/rbi/increase/models/oauth_connection_list_params.rbi
+++ b/rbi/increase/models/oauth_connection_list_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::OAuthConnectionListParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       # Return the page of entries after this one.
       sig { returns(T.nilable(String)) }
@@ -78,7 +84,12 @@ module Increase
 
       class Status < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::OAuthConnectionListParams::Status,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # Filter to OAuth Connections by their status. By default, return only the
         # `active` ones. For GET requests, this should be encoded as a comma-delimited
diff --git a/rbi/increase/models/oauth_connection_retrieve_params.rbi b/rbi/increase/models/oauth_connection_retrieve_params.rbi
index 3315b8bb9..fbfe2f758 100644
--- a/rbi/increase/models/oauth_connection_retrieve_params.rbi
+++ b/rbi/increase/models/oauth_connection_retrieve_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::OAuthConnectionRetrieveParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       sig do
         params(request_options: Increase::RequestOptions::OrHash).returns(
diff --git a/rbi/increase/models/oauth_token.rbi b/rbi/increase/models/oauth_token.rbi
index 727130911..fe907418a 100644
--- a/rbi/increase/models/oauth_token.rbi
+++ b/rbi/increase/models/oauth_token.rbi
@@ -3,7 +3,10 @@
 module Increase
   module Models
     class OAuthToken < Increase::Internal::Type::BaseModel
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(Increase::OAuthToken, Increase::Internal::AnyHash)
+        end
 
       # You may use this token in place of an API key to make OAuth requests on a user's
       # behalf.
diff --git a/rbi/increase/models/oauth_token_create_params.rbi b/rbi/increase/models/oauth_token_create_params.rbi
index 9b5ffda4c..df50e2b4d 100644
--- a/rbi/increase/models/oauth_token_create_params.rbi
+++ b/rbi/increase/models/oauth_token_create_params.rbi
@@ -6,7 +6,10 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(Increase::OAuthTokenCreateParams, Increase::Internal::AnyHash)
+        end
 
       # The credential you request in exchange for the code. In Production, this is
       # always `authorization_code`. In Sandbox, you can pass either enum value.
diff --git a/rbi/increase/models/pending_transaction.rbi b/rbi/increase/models/pending_transaction.rbi
index d03708841..43a21a0ef 100644
--- a/rbi/increase/models/pending_transaction.rbi
+++ b/rbi/increase/models/pending_transaction.rbi
@@ -3,7 +3,10 @@
 module Increase
   module Models
     class PendingTransaction < Increase::Internal::Type::BaseModel
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(Increase::PendingTransaction, Increase::Internal::AnyHash)
+        end
 
       # The Pending Transaction identifier.
       sig { returns(String) }
@@ -226,7 +229,12 @@ module Increase
 
       class Source < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::PendingTransaction::Source,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # An Account Transfer Instruction object. This field will be present in the JSON
         # response if and only if `category` is equal to `account_transfer_instruction`.
@@ -603,7 +611,12 @@ module Increase
 
         class AccountTransferInstruction < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::PendingTransaction::Source::AccountTransferInstruction,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # The pending amount in the minor unit of the transaction's currency. For dollars,
           # for example, this is cents.
@@ -728,7 +741,12 @@ module Increase
 
         class ACHTransferInstruction < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::PendingTransaction::Source::ACHTransferInstruction,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # The pending amount in USD cents.
           sig { returns(Integer) }
@@ -760,7 +778,12 @@ module Increase
 
         class CardAuthorization < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::PendingTransaction::Source::CardAuthorization,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # The Card Authorization identifier.
           sig { returns(String) }
@@ -1257,7 +1280,12 @@ module Increase
 
           class NetworkDetails < Increase::Internal::Type::BaseModel
             OrHash =
-              T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+              T.type_alias do
+                T.any(
+                  Increase::PendingTransaction::Source::CardAuthorization::NetworkDetails,
+                  Increase::Internal::AnyHash
+                )
+              end
 
             # The payment network used to process this card authorization.
             sig do
@@ -1354,7 +1382,12 @@ module Increase
 
             class Visa < Increase::Internal::Type::BaseModel
               OrHash =
-                T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+                T.type_alias do
+                  T.any(
+                    Increase::PendingTransaction::Source::CardAuthorization::NetworkDetails::Visa,
+                    Increase::Internal::AnyHash
+                  )
+                end
 
               # For electronic commerce transactions, this identifies the level of security used
               # in obtaining the customer's payment credential. For mail or telephone order
@@ -1697,7 +1730,12 @@ module Increase
 
           class NetworkIdentifiers < Increase::Internal::Type::BaseModel
             OrHash =
-              T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+              T.type_alias do
+                T.any(
+                  Increase::PendingTransaction::Source::CardAuthorization::NetworkIdentifiers,
+                  Increase::Internal::AnyHash
+                )
+              end
 
             # A life-cycle identifier used across e.g., an authorization and a reversal.
             # Expected to be unique per acquirer within a window of time. For some card
@@ -1850,7 +1888,12 @@ module Increase
 
           class Verification < Increase::Internal::Type::BaseModel
             OrHash =
-              T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+              T.type_alias do
+                T.any(
+                  Increase::PendingTransaction::Source::CardAuthorization::Verification,
+                  Increase::Internal::AnyHash
+                )
+              end
 
             # Fields related to verification of the Card Verification Code, a 3-digit code on
             # the back of the card.
@@ -1920,7 +1963,12 @@ module Increase
 
             class CardVerificationCode < Increase::Internal::Type::BaseModel
               OrHash =
-                T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+                T.type_alias do
+                  T.any(
+                    Increase::PendingTransaction::Source::CardAuthorization::Verification::CardVerificationCode,
+                    Increase::Internal::AnyHash
+                  )
+                end
 
               # The result of verifying the Card Verification Code.
               sig do
@@ -2003,7 +2051,12 @@ module Increase
 
             class CardholderAddress < Increase::Internal::Type::BaseModel
               OrHash =
-                T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+                T.type_alias do
+                  T.any(
+                    Increase::PendingTransaction::Source::CardAuthorization::Verification::CardholderAddress,
+                    Increase::Internal::AnyHash
+                  )
+                end
 
               # Line 1 of the address on file for the cardholder.
               sig { returns(T.nilable(String)) }
@@ -2242,7 +2295,12 @@ module Increase
 
         class CheckDepositInstruction < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::PendingTransaction::Source::CheckDepositInstruction,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # The pending amount in USD cents.
           sig { returns(Integer) }
@@ -2385,7 +2443,12 @@ module Increase
 
         class CheckTransferInstruction < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::PendingTransaction::Source::CheckTransferInstruction,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # The transfer amount in USD cents.
           sig { returns(Integer) }
@@ -2508,7 +2571,12 @@ module Increase
 
         class InboundFundsHold < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::PendingTransaction::Source::InboundFundsHold,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # The Inbound Funds Hold identifier.
           sig { returns(String) }
@@ -2778,7 +2846,12 @@ module Increase
 
         class InboundWireTransferReversal < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::PendingTransaction::Source::InboundWireTransferReversal,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # The ID of the Inbound Wire Transfer that is being reversed.
           sig { returns(String) }
@@ -2804,7 +2877,12 @@ module Increase
 
         class RealTimePaymentsTransferInstruction < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::PendingTransaction::Source::RealTimePaymentsTransferInstruction,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # The transfer amount in USD cents.
           sig { returns(Integer) }
@@ -2839,7 +2917,12 @@ module Increase
 
         class SwiftTransferInstruction < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::PendingTransaction::Source::SwiftTransferInstruction,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # The identifier of the Swift Transfer that led to this Pending Transaction.
           sig { returns(String) }
@@ -2861,7 +2944,12 @@ module Increase
 
         class WireTransferInstruction < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::PendingTransaction::Source::WireTransferInstruction,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # The account number for the destination account.
           sig { returns(String) }
diff --git a/rbi/increase/models/pending_transaction_list_params.rbi b/rbi/increase/models/pending_transaction_list_params.rbi
index 0f1025f66..cd8c064a0 100644
--- a/rbi/increase/models/pending_transaction_list_params.rbi
+++ b/rbi/increase/models/pending_transaction_list_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::PendingTransactionListParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       # Filter pending transactions to those belonging to the specified Account.
       sig { returns(T.nilable(String)) }
@@ -119,7 +125,12 @@ module Increase
 
       class Category < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::PendingTransactionListParams::Category,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # Return results whose value is in the provided list. For GET requests, this
         # should be encoded as a comma-delimited string, such as `?in=one,two,three`.
@@ -275,7 +286,12 @@ module Increase
 
       class CreatedAt < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::PendingTransactionListParams::CreatedAt,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # Return results after this [ISO 8601](https://en.wikipedia.org/wiki/ISO_8601)
         # timestamp.
@@ -344,7 +360,12 @@ module Increase
 
       class Status < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::PendingTransactionListParams::Status,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # Filter Pending Transactions for those with the specified status. By default only
         # Pending Transactions in with status `pending` will be returned. For GET
diff --git a/rbi/increase/models/pending_transaction_retrieve_params.rbi b/rbi/increase/models/pending_transaction_retrieve_params.rbi
index 402add09a..19ab842e1 100644
--- a/rbi/increase/models/pending_transaction_retrieve_params.rbi
+++ b/rbi/increase/models/pending_transaction_retrieve_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::PendingTransactionRetrieveParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       sig do
         params(request_options: Increase::RequestOptions::OrHash).returns(
diff --git a/rbi/increase/models/physical_card.rbi b/rbi/increase/models/physical_card.rbi
index 341b07f48..75eecbe74 100644
--- a/rbi/increase/models/physical_card.rbi
+++ b/rbi/increase/models/physical_card.rbi
@@ -3,7 +3,10 @@
 module Increase
   module Models
     class PhysicalCard < Increase::Internal::Type::BaseModel
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(Increase::PhysicalCard, Increase::Internal::AnyHash)
+        end
 
       # The physical card identifier.
       sig { returns(String) }
@@ -117,7 +120,12 @@ module Increase
 
       class Cardholder < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::PhysicalCard::Cardholder,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # The cardholder's first name.
         sig { returns(String) }
@@ -148,7 +156,9 @@ module Increase
 
       class Shipment < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(Increase::PhysicalCard::Shipment, Increase::Internal::AnyHash)
+          end
 
         # The location to where the card's packing label is addressed.
         sig { returns(Increase::PhysicalCard::Shipment::Address) }
@@ -218,7 +228,12 @@ module Increase
 
         class Address < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::PhysicalCard::Shipment::Address,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # The city of the shipping address.
           sig { returns(String) }
@@ -402,7 +417,12 @@ module Increase
 
         class Tracking < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::PhysicalCard::Shipment::Tracking,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # The tracking number.
           sig { returns(String) }
@@ -476,7 +496,12 @@ module Increase
 
           class Update < Increase::Internal::Type::BaseModel
             OrHash =
-              T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+              T.type_alias do
+                T.any(
+                  Increase::PhysicalCard::Shipment::Tracking::Update,
+                  Increase::Internal::AnyHash
+                )
+              end
 
             # The [ISO 8601](https://en.wikipedia.org/wiki/ISO_8601) date and time when the
             # carrier expects the card to be delivered.
diff --git a/rbi/increase/models/physical_card_create_params.rbi b/rbi/increase/models/physical_card_create_params.rbi
index aaee6cb52..a404c63e8 100644
--- a/rbi/increase/models/physical_card_create_params.rbi
+++ b/rbi/increase/models/physical_card_create_params.rbi
@@ -6,7 +6,10 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(Increase::PhysicalCardCreateParams, Increase::Internal::AnyHash)
+        end
 
       # The underlying card representing this physical card.
       sig { returns(String) }
@@ -81,7 +84,12 @@ module Increase
 
       class Cardholder < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::PhysicalCardCreateParams::Cardholder,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # The cardholder's first name.
         sig { returns(String) }
@@ -112,7 +120,12 @@ module Increase
 
       class Shipment < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::PhysicalCardCreateParams::Shipment,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # The address to where the card should be shipped.
         sig { returns(Increase::PhysicalCardCreateParams::Shipment::Address) }
@@ -165,7 +178,12 @@ module Increase
 
         class Address < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::PhysicalCardCreateParams::Shipment::Address,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # The city of the shipping address.
           sig { returns(String) }
diff --git a/rbi/increase/models/physical_card_list_params.rbi b/rbi/increase/models/physical_card_list_params.rbi
index 1b0a5bd23..31b1ba304 100644
--- a/rbi/increase/models/physical_card_list_params.rbi
+++ b/rbi/increase/models/physical_card_list_params.rbi
@@ -6,7 +6,10 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(Increase::PhysicalCardListParams, Increase::Internal::AnyHash)
+        end
 
       # Filter Physical Cards to ones belonging to the specified Card.
       sig { returns(T.nilable(String)) }
@@ -95,7 +98,12 @@ module Increase
 
       class CreatedAt < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::PhysicalCardListParams::CreatedAt,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # Return results after this [ISO 8601](https://en.wikipedia.org/wiki/ISO_8601)
         # timestamp.
diff --git a/rbi/increase/models/physical_card_profile.rbi b/rbi/increase/models/physical_card_profile.rbi
index acd6ad9b2..378652c52 100644
--- a/rbi/increase/models/physical_card_profile.rbi
+++ b/rbi/increase/models/physical_card_profile.rbi
@@ -3,7 +3,10 @@
 module Increase
   module Models
     class PhysicalCardProfile < Increase::Internal::Type::BaseModel
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(Increase::PhysicalCardProfile, Increase::Internal::AnyHash)
+        end
 
       # The Card Profile identifier.
       sig { returns(String) }
diff --git a/rbi/increase/models/physical_card_profile_archive_params.rbi b/rbi/increase/models/physical_card_profile_archive_params.rbi
index 20e882971..5e28d389a 100644
--- a/rbi/increase/models/physical_card_profile_archive_params.rbi
+++ b/rbi/increase/models/physical_card_profile_archive_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::PhysicalCardProfileArchiveParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       sig do
         params(request_options: Increase::RequestOptions::OrHash).returns(
diff --git a/rbi/increase/models/physical_card_profile_clone_params.rbi b/rbi/increase/models/physical_card_profile_clone_params.rbi
index ce93c2169..0a4552d95 100644
--- a/rbi/increase/models/physical_card_profile_clone_params.rbi
+++ b/rbi/increase/models/physical_card_profile_clone_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::PhysicalCardProfileCloneParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       # The identifier of the File containing the physical card's carrier image.
       sig { returns(T.nilable(String)) }
@@ -95,7 +101,12 @@ module Increase
 
       class FrontText < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::PhysicalCardProfileCloneParams::FrontText,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # The first line of text on the front of the card.
         sig { returns(String) }
diff --git a/rbi/increase/models/physical_card_profile_create_params.rbi b/rbi/increase/models/physical_card_profile_create_params.rbi
index bdbf1f874..2f9388a6d 100644
--- a/rbi/increase/models/physical_card_profile_create_params.rbi
+++ b/rbi/increase/models/physical_card_profile_create_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::PhysicalCardProfileCreateParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       # The identifier of the File containing the physical card's carrier image.
       sig { returns(String) }
@@ -91,7 +97,12 @@ module Increase
 
       class FrontText < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::PhysicalCardProfileCreateParams::FrontText,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # The first line of text on the front of the card.
         sig { returns(String) }
diff --git a/rbi/increase/models/physical_card_profile_list_params.rbi b/rbi/increase/models/physical_card_profile_list_params.rbi
index b19d72525..a65e701f2 100644
--- a/rbi/increase/models/physical_card_profile_list_params.rbi
+++ b/rbi/increase/models/physical_card_profile_list_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::PhysicalCardProfileListParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       # Return the page of entries after this one.
       sig { returns(T.nilable(String)) }
@@ -86,7 +92,12 @@ module Increase
 
       class Status < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::PhysicalCardProfileListParams::Status,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # Filter Physical Card Profiles for those with the specified statuses. For GET
         # requests, this should be encoded as a comma-delimited string, such as
diff --git a/rbi/increase/models/physical_card_profile_retrieve_params.rbi b/rbi/increase/models/physical_card_profile_retrieve_params.rbi
index 2103a60b8..42c5bc525 100644
--- a/rbi/increase/models/physical_card_profile_retrieve_params.rbi
+++ b/rbi/increase/models/physical_card_profile_retrieve_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::PhysicalCardProfileRetrieveParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       sig do
         params(request_options: Increase::RequestOptions::OrHash).returns(
diff --git a/rbi/increase/models/physical_card_retrieve_params.rbi b/rbi/increase/models/physical_card_retrieve_params.rbi
index 4a51bb8d0..6e643f20d 100644
--- a/rbi/increase/models/physical_card_retrieve_params.rbi
+++ b/rbi/increase/models/physical_card_retrieve_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::PhysicalCardRetrieveParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       sig do
         params(request_options: Increase::RequestOptions::OrHash).returns(
diff --git a/rbi/increase/models/physical_card_update_params.rbi b/rbi/increase/models/physical_card_update_params.rbi
index 9f112d412..610d94175 100644
--- a/rbi/increase/models/physical_card_update_params.rbi
+++ b/rbi/increase/models/physical_card_update_params.rbi
@@ -6,7 +6,10 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(Increase::PhysicalCardUpdateParams, Increase::Internal::AnyHash)
+        end
 
       # The status to update the Physical Card to.
       sig { returns(Increase::PhysicalCardUpdateParams::Status::OrSymbol) }
diff --git a/rbi/increase/models/program.rbi b/rbi/increase/models/program.rbi
index 99dbd2e8c..2594a5b36 100644
--- a/rbi/increase/models/program.rbi
+++ b/rbi/increase/models/program.rbi
@@ -3,7 +3,8 @@
 module Increase
   module Models
     class Program < Increase::Internal::Type::BaseModel
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias { T.any(Increase::Program, Increase::Internal::AnyHash) }
 
       # The Program identifier.
       sig { returns(String) }
diff --git a/rbi/increase/models/program_list_params.rbi b/rbi/increase/models/program_list_params.rbi
index 9de9b88bb..1040af57d 100644
--- a/rbi/increase/models/program_list_params.rbi
+++ b/rbi/increase/models/program_list_params.rbi
@@ -6,7 +6,10 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(Increase::ProgramListParams, Increase::Internal::AnyHash)
+        end
 
       # Return the page of entries after this one.
       sig { returns(T.nilable(String)) }
diff --git a/rbi/increase/models/program_retrieve_params.rbi b/rbi/increase/models/program_retrieve_params.rbi
index d2d70f0a4..bfe895ece 100644
--- a/rbi/increase/models/program_retrieve_params.rbi
+++ b/rbi/increase/models/program_retrieve_params.rbi
@@ -6,7 +6,10 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(Increase::ProgramRetrieveParams, Increase::Internal::AnyHash)
+        end
 
       sig do
         params(request_options: Increase::RequestOptions::OrHash).returns(
diff --git a/rbi/increase/models/real_time_decision.rbi b/rbi/increase/models/real_time_decision.rbi
index 6c0103a1d..0e34cfcc4 100644
--- a/rbi/increase/models/real_time_decision.rbi
+++ b/rbi/increase/models/real_time_decision.rbi
@@ -3,7 +3,10 @@
 module Increase
   module Models
     class RealTimeDecision < Increase::Internal::Type::BaseModel
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(Increase::RealTimeDecision, Increase::Internal::AnyHash)
+        end
 
       # The Real-Time Decision identifier.
       sig { returns(String) }
@@ -192,7 +195,12 @@ module Increase
 
       class CardAuthentication < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::RealTimeDecision::CardAuthentication,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # The identifier of the Account the card belongs to.
         sig { returns(String) }
@@ -306,7 +314,12 @@ module Increase
 
       class CardAuthenticationChallenge < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::RealTimeDecision::CardAuthenticationChallenge,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # The identifier of the Account the card belongs to.
         sig { returns(String) }
@@ -421,7 +434,12 @@ module Increase
 
       class CardAuthorization < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::RealTimeDecision::CardAuthorization,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # The identifier of the Account the authorization will debit.
         sig { returns(String) }
@@ -824,7 +842,12 @@ module Increase
 
         class NetworkDetails < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::RealTimeDecision::CardAuthorization::NetworkDetails,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # The payment network used to process this card authorization.
           sig do
@@ -921,7 +944,12 @@ module Increase
 
           class Visa < Increase::Internal::Type::BaseModel
             OrHash =
-              T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+              T.type_alias do
+                T.any(
+                  Increase::RealTimeDecision::CardAuthorization::NetworkDetails::Visa,
+                  Increase::Internal::AnyHash
+                )
+              end
 
             # For electronic commerce transactions, this identifies the level of security used
             # in obtaining the customer's payment credential. For mail or telephone order
@@ -1264,7 +1292,12 @@ module Increase
 
         class NetworkIdentifiers < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::RealTimeDecision::CardAuthorization::NetworkIdentifiers,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # A life-cycle identifier used across e.g., an authorization and a reversal.
           # Expected to be unique per acquirer within a window of time. For some card
@@ -1386,7 +1419,12 @@ module Increase
 
         class RequestDetails < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::RealTimeDecision::CardAuthorization::RequestDetails,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # The type of this request (e.g., an initial authorization or an incremental
           # authorization).
@@ -1501,7 +1539,12 @@ module Increase
 
           class IncrementalAuthorization < Increase::Internal::Type::BaseModel
             OrHash =
-              T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+              T.type_alias do
+                T.any(
+                  Increase::RealTimeDecision::CardAuthorization::RequestDetails::IncrementalAuthorization,
+                  Increase::Internal::AnyHash
+                )
+              end
 
             # The card payment for this authorization and increment.
             sig { returns(String) }
@@ -1543,7 +1586,12 @@ module Increase
 
         class Verification < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::RealTimeDecision::CardAuthorization::Verification,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # Fields related to verification of the Card Verification Code, a 3-digit code on
           # the back of the card.
@@ -1613,7 +1661,12 @@ module Increase
 
           class CardVerificationCode < Increase::Internal::Type::BaseModel
             OrHash =
-              T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+              T.type_alias do
+                T.any(
+                  Increase::RealTimeDecision::CardAuthorization::Verification::CardVerificationCode,
+                  Increase::Internal::AnyHash
+                )
+              end
 
             # The result of verifying the Card Verification Code.
             sig do
@@ -1696,7 +1749,12 @@ module Increase
 
           class CardholderAddress < Increase::Internal::Type::BaseModel
             OrHash =
-              T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+              T.type_alias do
+                T.any(
+                  Increase::RealTimeDecision::CardAuthorization::Verification::CardholderAddress,
+                  Increase::Internal::AnyHash
+                )
+              end
 
             # Line 1 of the address on file for the cardholder.
             sig { returns(T.nilable(String)) }
@@ -1888,7 +1946,12 @@ module Increase
 
       class DigitalWalletAuthentication < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::RealTimeDecision::DigitalWalletAuthentication,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # The identifier of the Card that is being tokenized.
         sig { returns(String) }
@@ -2121,7 +2184,12 @@ module Increase
 
       class DigitalWalletToken < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::RealTimeDecision::DigitalWalletToken,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # The identifier of the Card that is being tokenized.
         sig { returns(String) }
@@ -2255,7 +2323,12 @@ module Increase
 
         class Device < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::RealTimeDecision::DigitalWalletToken::Device,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # ID assigned to the device by the digital wallet provider.
           sig { returns(T.nilable(String)) }
diff --git a/rbi/increase/models/real_time_decision_action_params.rbi b/rbi/increase/models/real_time_decision_action_params.rbi
index bd24ac0ad..a0642c26a 100644
--- a/rbi/increase/models/real_time_decision_action_params.rbi
+++ b/rbi/increase/models/real_time_decision_action_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::RealTimeDecisionActionParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       # If the Real-Time Decision relates to a 3DS card authentication attempt, this
       # object contains your response to the authentication.
@@ -154,7 +160,12 @@ module Increase
 
       class CardAuthentication < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::RealTimeDecisionActionParams::CardAuthentication,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # Whether the card authentication attempt should be approved or declined.
         sig do
@@ -237,7 +248,12 @@ module Increase
 
       class CardAuthenticationChallenge < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::RealTimeDecisionActionParams::CardAuthenticationChallenge,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # Whether the card authentication challenge was successfully delivered to the
         # cardholder.
@@ -316,7 +332,12 @@ module Increase
 
       class CardAuthorization < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::RealTimeDecisionActionParams::CardAuthorization,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # Whether the card authorization should be approved or declined.
         sig do
@@ -485,7 +506,12 @@ module Increase
 
       class DigitalWalletAuthentication < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::RealTimeDecisionActionParams::DigitalWalletAuthentication,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # Whether your application was able to deliver the one-time passcode.
         sig do
@@ -582,7 +608,12 @@ module Increase
 
         class Success < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::RealTimeDecisionActionParams::DigitalWalletAuthentication::Success,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # The email address that was used to verify the cardholder via one-time passcode.
           sig { returns(T.nilable(String)) }
@@ -617,7 +648,12 @@ module Increase
 
       class DigitalWalletToken < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::RealTimeDecisionActionParams::DigitalWalletToken,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # If your application approves the provisioning attempt, this contains metadata
         # about the digital wallet token that will be generated.
@@ -692,7 +728,12 @@ module Increase
 
         class Approval < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::RealTimeDecisionActionParams::DigitalWalletToken::Approval,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # An email address that can be used to verify the cardholder via one-time
           # passcode.
@@ -730,7 +771,12 @@ module Increase
 
         class Decline < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::RealTimeDecisionActionParams::DigitalWalletToken::Decline,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # Why the tokenization attempt was declined. This is for logging purposes only and
           # is not displayed to the end-user.
diff --git a/rbi/increase/models/real_time_decision_retrieve_params.rbi b/rbi/increase/models/real_time_decision_retrieve_params.rbi
index e21a8473e..6a52a1b2b 100644
--- a/rbi/increase/models/real_time_decision_retrieve_params.rbi
+++ b/rbi/increase/models/real_time_decision_retrieve_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::RealTimeDecisionRetrieveParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       sig do
         params(request_options: Increase::RequestOptions::OrHash).returns(
diff --git a/rbi/increase/models/real_time_payments_transfer.rbi b/rbi/increase/models/real_time_payments_transfer.rbi
index ddf04c71b..204b17937 100644
--- a/rbi/increase/models/real_time_payments_transfer.rbi
+++ b/rbi/increase/models/real_time_payments_transfer.rbi
@@ -3,7 +3,10 @@
 module Increase
   module Models
     class RealTimePaymentsTransfer < Increase::Internal::Type::BaseModel
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(Increase::RealTimePaymentsTransfer, Increase::Internal::AnyHash)
+        end
 
       # The Real-Time Payments Transfer's identifier.
       sig { returns(String) }
@@ -331,7 +334,12 @@ module Increase
 
       class Acknowledgement < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::RealTimePaymentsTransfer::Acknowledgement,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # When the transfer was acknowledged.
         sig { returns(Time) }
@@ -353,7 +361,12 @@ module Increase
 
       class Approval < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::RealTimePaymentsTransfer::Approval,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # The [ISO 8601](https://en.wikipedia.org/wiki/ISO_8601) date and time at which
         # the transfer was approved.
@@ -393,7 +406,12 @@ module Increase
 
       class Cancellation < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::RealTimePaymentsTransfer::Cancellation,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # The [ISO 8601](https://en.wikipedia.org/wiki/ISO_8601) date and time at which
         # the Transfer was canceled.
@@ -433,7 +451,12 @@ module Increase
 
       class CreatedBy < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::RealTimePaymentsTransfer::CreatedBy,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # If present, details about the API key that created the transfer.
         sig do
@@ -553,7 +576,12 @@ module Increase
 
         class APIKey < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::RealTimePaymentsTransfer::CreatedBy::APIKey,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # The description set for the API key when it was created.
           sig { returns(T.nilable(String)) }
@@ -621,7 +649,12 @@ module Increase
 
         class OAuthApplication < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::RealTimePaymentsTransfer::CreatedBy::OAuthApplication,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # The name of the OAuth Application.
           sig { returns(String) }
@@ -642,7 +675,12 @@ module Increase
 
         class User < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::RealTimePaymentsTransfer::CreatedBy::User,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # The email address of the User.
           sig { returns(String) }
@@ -726,7 +764,12 @@ module Increase
 
       class Rejection < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::RealTimePaymentsTransfer::Rejection,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # Additional information about the rejection provided by the recipient bank when
         # the `reject_reason_code` is `NARRATIVE`.
@@ -1033,7 +1076,12 @@ module Increase
 
       class Submission < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::RealTimePaymentsTransfer::Submission,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # The [ISO 8601](https://en.wikipedia.org/wiki/ISO_8601) date and time at which
         # the transfer was submitted to The Clearing House.
diff --git a/rbi/increase/models/real_time_payments_transfer_create_params.rbi b/rbi/increase/models/real_time_payments_transfer_create_params.rbi
index db93b40c1..e5f3a78d6 100644
--- a/rbi/increase/models/real_time_payments_transfer_create_params.rbi
+++ b/rbi/increase/models/real_time_payments_transfer_create_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::RealTimePaymentsTransferCreateParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       # The transfer amount in USD cents. For Real-Time Payments transfers, must be
       # positive.
diff --git a/rbi/increase/models/real_time_payments_transfer_list_params.rbi b/rbi/increase/models/real_time_payments_transfer_list_params.rbi
index df15c9c4a..fad5d7025 100644
--- a/rbi/increase/models/real_time_payments_transfer_list_params.rbi
+++ b/rbi/increase/models/real_time_payments_transfer_list_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::RealTimePaymentsTransferListParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       # Filter Real-Time Payments Transfers to those belonging to the specified Account.
       sig { returns(T.nilable(String)) }
@@ -129,7 +135,12 @@ module Increase
 
       class CreatedAt < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::RealTimePaymentsTransferListParams::CreatedAt,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # Return results after this [ISO 8601](https://en.wikipedia.org/wiki/ISO_8601)
         # timestamp.
@@ -198,7 +209,12 @@ module Increase
 
       class Status < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::RealTimePaymentsTransferListParams::Status,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # Return results whose value is in the provided list. For GET requests, this
         # should be encoded as a comma-delimited string, such as `?in=one,two,three`.
diff --git a/rbi/increase/models/real_time_payments_transfer_retrieve_params.rbi b/rbi/increase/models/real_time_payments_transfer_retrieve_params.rbi
index c1e71049e..8ed59cffc 100644
--- a/rbi/increase/models/real_time_payments_transfer_retrieve_params.rbi
+++ b/rbi/increase/models/real_time_payments_transfer_retrieve_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::RealTimePaymentsTransferRetrieveParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       sig do
         params(request_options: Increase::RequestOptions::OrHash).returns(
diff --git a/rbi/increase/models/routing_number_list_params.rbi b/rbi/increase/models/routing_number_list_params.rbi
index 3051eb1a7..81c41cbb8 100644
--- a/rbi/increase/models/routing_number_list_params.rbi
+++ b/rbi/increase/models/routing_number_list_params.rbi
@@ -6,7 +6,10 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(Increase::RoutingNumberListParams, Increase::Internal::AnyHash)
+        end
 
       # Filter financial institutions by routing number.
       sig { returns(String) }
diff --git a/rbi/increase/models/routing_number_list_response.rbi b/rbi/increase/models/routing_number_list_response.rbi
index eade22ea4..feccd43a8 100644
--- a/rbi/increase/models/routing_number_list_response.rbi
+++ b/rbi/increase/models/routing_number_list_response.rbi
@@ -3,7 +3,13 @@
 module Increase
   module Models
     class RoutingNumberListResponse < Increase::Internal::Type::BaseModel
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::Models::RoutingNumberListResponse,
+            Increase::Internal::AnyHash
+          )
+        end
 
       # This routing number's support for ACH Transfers.
       sig do
diff --git a/rbi/increase/models/simulations/account_statement_create_params.rbi b/rbi/increase/models/simulations/account_statement_create_params.rbi
index b8d020217..c11bf5eaa 100644
--- a/rbi/increase/models/simulations/account_statement_create_params.rbi
+++ b/rbi/increase/models/simulations/account_statement_create_params.rbi
@@ -8,7 +8,12 @@ module Increase
         include Increase::Internal::Type::RequestParameters
 
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::Simulations::AccountStatementCreateParams,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # The identifier of the Account the statement is for.
         sig { returns(String) }
diff --git a/rbi/increase/models/simulations/account_transfer_complete_params.rbi b/rbi/increase/models/simulations/account_transfer_complete_params.rbi
index 4cfb1fdfd..f439e8012 100644
--- a/rbi/increase/models/simulations/account_transfer_complete_params.rbi
+++ b/rbi/increase/models/simulations/account_transfer_complete_params.rbi
@@ -8,7 +8,12 @@ module Increase
         include Increase::Internal::Type::RequestParameters
 
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::Simulations::AccountTransferCompleteParams,
+              Increase::Internal::AnyHash
+            )
+          end
 
         sig do
           params(request_options: Increase::RequestOptions::OrHash).returns(
diff --git a/rbi/increase/models/simulations/ach_transfer_acknowledge_params.rbi b/rbi/increase/models/simulations/ach_transfer_acknowledge_params.rbi
index edbcdf8f7..e8ba6b3fa 100644
--- a/rbi/increase/models/simulations/ach_transfer_acknowledge_params.rbi
+++ b/rbi/increase/models/simulations/ach_transfer_acknowledge_params.rbi
@@ -8,7 +8,12 @@ module Increase
         include Increase::Internal::Type::RequestParameters
 
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::Simulations::ACHTransferAcknowledgeParams,
+              Increase::Internal::AnyHash
+            )
+          end
 
         sig do
           params(request_options: Increase::RequestOptions::OrHash).returns(
diff --git a/rbi/increase/models/simulations/ach_transfer_create_notification_of_change_params.rbi b/rbi/increase/models/simulations/ach_transfer_create_notification_of_change_params.rbi
index d3cfac5cf..86cb00483 100644
--- a/rbi/increase/models/simulations/ach_transfer_create_notification_of_change_params.rbi
+++ b/rbi/increase/models/simulations/ach_transfer_create_notification_of_change_params.rbi
@@ -8,7 +8,12 @@ module Increase
         include Increase::Internal::Type::RequestParameters
 
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::Simulations::ACHTransferCreateNotificationOfChangeParams,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # The reason for the notification of change.
         sig do
diff --git a/rbi/increase/models/simulations/ach_transfer_return_params.rbi b/rbi/increase/models/simulations/ach_transfer_return_params.rbi
index 9ff4c8d7a..2975b7d51 100644
--- a/rbi/increase/models/simulations/ach_transfer_return_params.rbi
+++ b/rbi/increase/models/simulations/ach_transfer_return_params.rbi
@@ -8,7 +8,12 @@ module Increase
         include Increase::Internal::Type::RequestParameters
 
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::Simulations::ACHTransferReturnParams,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # The reason why the Federal Reserve or destination bank returned this transfer.
         # Defaults to `no_account`.
diff --git a/rbi/increase/models/simulations/ach_transfer_settle_params.rbi b/rbi/increase/models/simulations/ach_transfer_settle_params.rbi
index 284597b5a..0a8df71d3 100644
--- a/rbi/increase/models/simulations/ach_transfer_settle_params.rbi
+++ b/rbi/increase/models/simulations/ach_transfer_settle_params.rbi
@@ -8,7 +8,12 @@ module Increase
         include Increase::Internal::Type::RequestParameters
 
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::Simulations::ACHTransferSettleParams,
+              Increase::Internal::AnyHash
+            )
+          end
 
         sig do
           params(request_options: Increase::RequestOptions::OrHash).returns(
diff --git a/rbi/increase/models/simulations/ach_transfer_submit_params.rbi b/rbi/increase/models/simulations/ach_transfer_submit_params.rbi
index 9b5b6080e..b85948a9a 100644
--- a/rbi/increase/models/simulations/ach_transfer_submit_params.rbi
+++ b/rbi/increase/models/simulations/ach_transfer_submit_params.rbi
@@ -8,7 +8,12 @@ module Increase
         include Increase::Internal::Type::RequestParameters
 
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::Simulations::ACHTransferSubmitParams,
+              Increase::Internal::AnyHash
+            )
+          end
 
         sig do
           params(request_options: Increase::RequestOptions::OrHash).returns(
diff --git a/rbi/increase/models/simulations/card_authorization_create_params.rbi b/rbi/increase/models/simulations/card_authorization_create_params.rbi
index 018eb2375..cd40b675f 100644
--- a/rbi/increase/models/simulations/card_authorization_create_params.rbi
+++ b/rbi/increase/models/simulations/card_authorization_create_params.rbi
@@ -8,7 +8,12 @@ module Increase
         include Increase::Internal::Type::RequestParameters
 
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::Simulations::CardAuthorizationCreateParams,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # The authorization amount in cents.
         sig { returns(Integer) }
@@ -465,7 +470,12 @@ module Increase
 
         class NetworkDetails < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::Simulations::CardAuthorizationCreateParams::NetworkDetails,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # Fields specific to the Visa network.
           sig do
@@ -509,7 +519,12 @@ module Increase
 
           class Visa < Increase::Internal::Type::BaseModel
             OrHash =
-              T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+              T.type_alias do
+                T.any(
+                  Increase::Simulations::CardAuthorizationCreateParams::NetworkDetails::Visa,
+                  Increase::Internal::AnyHash
+                )
+              end
 
             # The reason code for the stand-in processing.
             sig do
diff --git a/rbi/increase/models/simulations/card_authorization_create_response.rbi b/rbi/increase/models/simulations/card_authorization_create_response.rbi
index 8805784a3..c4395aeec 100644
--- a/rbi/increase/models/simulations/card_authorization_create_response.rbi
+++ b/rbi/increase/models/simulations/card_authorization_create_response.rbi
@@ -5,7 +5,12 @@ module Increase
     module Simulations
       class CardAuthorizationCreateResponse < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::Models::Simulations::CardAuthorizationCreateResponse,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # If the authorization attempt fails, this will contain the resulting
         # [Declined Transaction](#declined-transactions) object. The Declined
diff --git a/rbi/increase/models/simulations/card_authorization_expiration_create_params.rbi b/rbi/increase/models/simulations/card_authorization_expiration_create_params.rbi
index cad81d32b..de2716387 100644
--- a/rbi/increase/models/simulations/card_authorization_expiration_create_params.rbi
+++ b/rbi/increase/models/simulations/card_authorization_expiration_create_params.rbi
@@ -8,7 +8,12 @@ module Increase
         include Increase::Internal::Type::RequestParameters
 
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::Simulations::CardAuthorizationExpirationCreateParams,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # The identifier of the Card Payment to expire.
         sig { returns(String) }
diff --git a/rbi/increase/models/simulations/card_dispute_action_params.rbi b/rbi/increase/models/simulations/card_dispute_action_params.rbi
index 44b38bdaa..1bb1fca38 100644
--- a/rbi/increase/models/simulations/card_dispute_action_params.rbi
+++ b/rbi/increase/models/simulations/card_dispute_action_params.rbi
@@ -8,7 +8,12 @@ module Increase
         include Increase::Internal::Type::RequestParameters
 
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::Simulations::CardDisputeActionParams,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # The status to move the dispute to.
         sig do
diff --git a/rbi/increase/models/simulations/card_fuel_confirmation_create_params.rbi b/rbi/increase/models/simulations/card_fuel_confirmation_create_params.rbi
index 364187cfb..4590a59ac 100644
--- a/rbi/increase/models/simulations/card_fuel_confirmation_create_params.rbi
+++ b/rbi/increase/models/simulations/card_fuel_confirmation_create_params.rbi
@@ -8,7 +8,12 @@ module Increase
         include Increase::Internal::Type::RequestParameters
 
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::Simulations::CardFuelConfirmationCreateParams,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # The amount of the fuel_confirmation in minor units in the card authorization's
         # currency.
diff --git a/rbi/increase/models/simulations/card_increment_create_params.rbi b/rbi/increase/models/simulations/card_increment_create_params.rbi
index 56c8a3103..86e3c4b61 100644
--- a/rbi/increase/models/simulations/card_increment_create_params.rbi
+++ b/rbi/increase/models/simulations/card_increment_create_params.rbi
@@ -8,7 +8,12 @@ module Increase
         include Increase::Internal::Type::RequestParameters
 
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::Simulations::CardIncrementCreateParams,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # The amount of the increment in minor units in the card authorization's currency.
         sig { returns(Integer) }
diff --git a/rbi/increase/models/simulations/card_refund_create_params.rbi b/rbi/increase/models/simulations/card_refund_create_params.rbi
index 0c4e73899..66f6daa3e 100644
--- a/rbi/increase/models/simulations/card_refund_create_params.rbi
+++ b/rbi/increase/models/simulations/card_refund_create_params.rbi
@@ -8,7 +8,12 @@ module Increase
         include Increase::Internal::Type::RequestParameters
 
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::Simulations::CardRefundCreateParams,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # The identifier for the Transaction to refund. The Transaction's source must have
         # a category of card_settlement.
diff --git a/rbi/increase/models/simulations/card_reversal_create_params.rbi b/rbi/increase/models/simulations/card_reversal_create_params.rbi
index 739690652..cafb15cc5 100644
--- a/rbi/increase/models/simulations/card_reversal_create_params.rbi
+++ b/rbi/increase/models/simulations/card_reversal_create_params.rbi
@@ -8,7 +8,12 @@ module Increase
         include Increase::Internal::Type::RequestParameters
 
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::Simulations::CardReversalCreateParams,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # The identifier of the Card Payment to create a reversal on.
         sig { returns(String) }
diff --git a/rbi/increase/models/simulations/card_settlement_create_params.rbi b/rbi/increase/models/simulations/card_settlement_create_params.rbi
index 85a95724e..c58722826 100644
--- a/rbi/increase/models/simulations/card_settlement_create_params.rbi
+++ b/rbi/increase/models/simulations/card_settlement_create_params.rbi
@@ -8,7 +8,12 @@ module Increase
         include Increase::Internal::Type::RequestParameters
 
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::Simulations::CardSettlementCreateParams,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # The identifier of the Card to create a settlement on.
         sig { returns(String) }
diff --git a/rbi/increase/models/simulations/check_deposit_reject_params.rbi b/rbi/increase/models/simulations/check_deposit_reject_params.rbi
index 3a7b04789..6e23728c7 100644
--- a/rbi/increase/models/simulations/check_deposit_reject_params.rbi
+++ b/rbi/increase/models/simulations/check_deposit_reject_params.rbi
@@ -8,7 +8,12 @@ module Increase
         include Increase::Internal::Type::RequestParameters
 
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::Simulations::CheckDepositRejectParams,
+              Increase::Internal::AnyHash
+            )
+          end
 
         sig do
           params(request_options: Increase::RequestOptions::OrHash).returns(
diff --git a/rbi/increase/models/simulations/check_deposit_return_params.rbi b/rbi/increase/models/simulations/check_deposit_return_params.rbi
index a2a84ff94..dd9dff9ab 100644
--- a/rbi/increase/models/simulations/check_deposit_return_params.rbi
+++ b/rbi/increase/models/simulations/check_deposit_return_params.rbi
@@ -8,7 +8,12 @@ module Increase
         include Increase::Internal::Type::RequestParameters
 
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::Simulations::CheckDepositReturnParams,
+              Increase::Internal::AnyHash
+            )
+          end
 
         sig do
           params(request_options: Increase::RequestOptions::OrHash).returns(
diff --git a/rbi/increase/models/simulations/check_deposit_submit_params.rbi b/rbi/increase/models/simulations/check_deposit_submit_params.rbi
index f31d7e9df..e8bdc7214 100644
--- a/rbi/increase/models/simulations/check_deposit_submit_params.rbi
+++ b/rbi/increase/models/simulations/check_deposit_submit_params.rbi
@@ -8,7 +8,12 @@ module Increase
         include Increase::Internal::Type::RequestParameters
 
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::Simulations::CheckDepositSubmitParams,
+              Increase::Internal::AnyHash
+            )
+          end
 
         sig do
           params(request_options: Increase::RequestOptions::OrHash).returns(
diff --git a/rbi/increase/models/simulations/check_transfer_mail_params.rbi b/rbi/increase/models/simulations/check_transfer_mail_params.rbi
index 337c83572..c8f3aa702 100644
--- a/rbi/increase/models/simulations/check_transfer_mail_params.rbi
+++ b/rbi/increase/models/simulations/check_transfer_mail_params.rbi
@@ -8,7 +8,12 @@ module Increase
         include Increase::Internal::Type::RequestParameters
 
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::Simulations::CheckTransferMailParams,
+              Increase::Internal::AnyHash
+            )
+          end
 
         sig do
           params(request_options: Increase::RequestOptions::OrHash).returns(
diff --git a/rbi/increase/models/simulations/digital_wallet_token_request_create_params.rbi b/rbi/increase/models/simulations/digital_wallet_token_request_create_params.rbi
index 23a61e8d8..50fb1ff79 100644
--- a/rbi/increase/models/simulations/digital_wallet_token_request_create_params.rbi
+++ b/rbi/increase/models/simulations/digital_wallet_token_request_create_params.rbi
@@ -8,7 +8,12 @@ module Increase
         include Increase::Internal::Type::RequestParameters
 
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::Simulations::DigitalWalletTokenRequestCreateParams,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # The identifier of the Card to be authorized.
         sig { returns(String) }
diff --git a/rbi/increase/models/simulations/digital_wallet_token_request_create_response.rbi b/rbi/increase/models/simulations/digital_wallet_token_request_create_response.rbi
index 11973930c..e565c8918 100644
--- a/rbi/increase/models/simulations/digital_wallet_token_request_create_response.rbi
+++ b/rbi/increase/models/simulations/digital_wallet_token_request_create_response.rbi
@@ -5,7 +5,12 @@ module Increase
     module Simulations
       class DigitalWalletTokenRequestCreateResponse < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::Models::Simulations::DigitalWalletTokenRequestCreateResponse,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # If the simulated tokenization attempt was declined, this field contains details
         # as to why.
diff --git a/rbi/increase/models/simulations/document_create_params.rbi b/rbi/increase/models/simulations/document_create_params.rbi
index 99c0d6278..e8e4cdb86 100644
--- a/rbi/increase/models/simulations/document_create_params.rbi
+++ b/rbi/increase/models/simulations/document_create_params.rbi
@@ -8,7 +8,12 @@ module Increase
         include Increase::Internal::Type::RequestParameters
 
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::Simulations::DocumentCreateParams,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # The identifier of the Account the tax document is for.
         sig { returns(String) }
diff --git a/rbi/increase/models/simulations/inbound_ach_transfer_create_params.rbi b/rbi/increase/models/simulations/inbound_ach_transfer_create_params.rbi
index 275d487e9..311aeb4d7 100644
--- a/rbi/increase/models/simulations/inbound_ach_transfer_create_params.rbi
+++ b/rbi/increase/models/simulations/inbound_ach_transfer_create_params.rbi
@@ -8,7 +8,12 @@ module Increase
         include Increase::Internal::Type::RequestParameters
 
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::Simulations::InboundACHTransferCreateParams,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # The identifier of the Account Number the inbound ACH Transfer is for.
         sig { returns(String) }
diff --git a/rbi/increase/models/simulations/inbound_check_deposit_create_params.rbi b/rbi/increase/models/simulations/inbound_check_deposit_create_params.rbi
index d949b366c..4a1c9ffd5 100644
--- a/rbi/increase/models/simulations/inbound_check_deposit_create_params.rbi
+++ b/rbi/increase/models/simulations/inbound_check_deposit_create_params.rbi
@@ -8,7 +8,12 @@ module Increase
         include Increase::Internal::Type::RequestParameters
 
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::Simulations::InboundCheckDepositCreateParams,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # The identifier of the Account Number the Inbound Check Deposit will be against.
         sig { returns(String) }
diff --git a/rbi/increase/models/simulations/inbound_funds_hold_release_params.rbi b/rbi/increase/models/simulations/inbound_funds_hold_release_params.rbi
index edc5e05ac..7cbc48a7a 100644
--- a/rbi/increase/models/simulations/inbound_funds_hold_release_params.rbi
+++ b/rbi/increase/models/simulations/inbound_funds_hold_release_params.rbi
@@ -8,7 +8,12 @@ module Increase
         include Increase::Internal::Type::RequestParameters
 
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::Simulations::InboundFundsHoldReleaseParams,
+              Increase::Internal::AnyHash
+            )
+          end
 
         sig do
           params(request_options: Increase::RequestOptions::OrHash).returns(
diff --git a/rbi/increase/models/simulations/inbound_funds_hold_release_response.rbi b/rbi/increase/models/simulations/inbound_funds_hold_release_response.rbi
index 9926f0692..75e5f634d 100644
--- a/rbi/increase/models/simulations/inbound_funds_hold_release_response.rbi
+++ b/rbi/increase/models/simulations/inbound_funds_hold_release_response.rbi
@@ -5,7 +5,12 @@ module Increase
     module Simulations
       class InboundFundsHoldReleaseResponse < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::Models::Simulations::InboundFundsHoldReleaseResponse,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # The Inbound Funds Hold identifier.
         sig { returns(String) }
diff --git a/rbi/increase/models/simulations/inbound_mail_item_create_params.rbi b/rbi/increase/models/simulations/inbound_mail_item_create_params.rbi
index 1a38a6a23..44b59bfeb 100644
--- a/rbi/increase/models/simulations/inbound_mail_item_create_params.rbi
+++ b/rbi/increase/models/simulations/inbound_mail_item_create_params.rbi
@@ -8,7 +8,12 @@ module Increase
         include Increase::Internal::Type::RequestParameters
 
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::Simulations::InboundMailItemCreateParams,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # The amount of the check to be simulated, in cents.
         sig { returns(Integer) }
diff --git a/rbi/increase/models/simulations/inbound_real_time_payments_transfer_create_params.rbi b/rbi/increase/models/simulations/inbound_real_time_payments_transfer_create_params.rbi
index 870f240f5..6d84220e8 100644
--- a/rbi/increase/models/simulations/inbound_real_time_payments_transfer_create_params.rbi
+++ b/rbi/increase/models/simulations/inbound_real_time_payments_transfer_create_params.rbi
@@ -8,7 +8,12 @@ module Increase
         include Increase::Internal::Type::RequestParameters
 
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::Simulations::InboundRealTimePaymentsTransferCreateParams,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # The identifier of the Account Number the inbound Real-Time Payments Transfer is
         # for.
diff --git a/rbi/increase/models/simulations/inbound_wire_drawdown_request_create_params.rbi b/rbi/increase/models/simulations/inbound_wire_drawdown_request_create_params.rbi
index 6f3c11ada..da572f3bd 100644
--- a/rbi/increase/models/simulations/inbound_wire_drawdown_request_create_params.rbi
+++ b/rbi/increase/models/simulations/inbound_wire_drawdown_request_create_params.rbi
@@ -8,7 +8,12 @@ module Increase
         include Increase::Internal::Type::RequestParameters
 
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::Simulations::InboundWireDrawdownRequestCreateParams,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # The amount being requested in cents.
         sig { returns(Integer) }
diff --git a/rbi/increase/models/simulations/inbound_wire_transfer_create_params.rbi b/rbi/increase/models/simulations/inbound_wire_transfer_create_params.rbi
index 94bd599c7..3e0f3746f 100644
--- a/rbi/increase/models/simulations/inbound_wire_transfer_create_params.rbi
+++ b/rbi/increase/models/simulations/inbound_wire_transfer_create_params.rbi
@@ -8,7 +8,12 @@ module Increase
         include Increase::Internal::Type::RequestParameters
 
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::Simulations::InboundWireTransferCreateParams,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # The identifier of the Account Number the inbound Wire Transfer is for.
         sig { returns(String) }
diff --git a/rbi/increase/models/simulations/interest_payment_create_params.rbi b/rbi/increase/models/simulations/interest_payment_create_params.rbi
index 658832e2a..0f8ec984d 100644
--- a/rbi/increase/models/simulations/interest_payment_create_params.rbi
+++ b/rbi/increase/models/simulations/interest_payment_create_params.rbi
@@ -8,7 +8,12 @@ module Increase
         include Increase::Internal::Type::RequestParameters
 
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::Simulations::InterestPaymentCreateParams,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # The identifier of the Account the Interest Payment should be paid to is for.
         sig { returns(String) }
diff --git a/rbi/increase/models/simulations/physical_card_advance_shipment_params.rbi b/rbi/increase/models/simulations/physical_card_advance_shipment_params.rbi
index c4bf8fc6e..ffe3e936c 100644
--- a/rbi/increase/models/simulations/physical_card_advance_shipment_params.rbi
+++ b/rbi/increase/models/simulations/physical_card_advance_shipment_params.rbi
@@ -8,7 +8,12 @@ module Increase
         include Increase::Internal::Type::RequestParameters
 
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::Simulations::PhysicalCardAdvanceShipmentParams,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # The shipment status to move the Physical Card to.
         sig do
diff --git a/rbi/increase/models/simulations/program_create_params.rbi b/rbi/increase/models/simulations/program_create_params.rbi
index 97994b949..e75d91c09 100644
--- a/rbi/increase/models/simulations/program_create_params.rbi
+++ b/rbi/increase/models/simulations/program_create_params.rbi
@@ -8,28 +8,47 @@ module Increase
         include Increase::Internal::Type::RequestParameters
 
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::Simulations::ProgramCreateParams,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # The name of the program being added.
         sig { returns(String) }
         attr_accessor :name
 
+        # The identifier of the Account the Program should be added to is for.
+        sig { returns(T.nilable(String)) }
+        attr_reader :reserve_account_id
+
+        sig { params(reserve_account_id: String).void }
+        attr_writer :reserve_account_id
+
         sig do
           params(
             name: String,
+            reserve_account_id: String,
             request_options: Increase::RequestOptions::OrHash
           ).returns(T.attached_class)
         end
         def self.new(
           # The name of the program being added.
           name:,
+          # The identifier of the Account the Program should be added to is for.
+          reserve_account_id: nil,
           request_options: {}
         )
         end
 
         sig do
           override.returns(
-            { name: String, request_options: Increase::RequestOptions }
+            {
+              name: String,
+              reserve_account_id: String,
+              request_options: Increase::RequestOptions
+            }
           )
         end
         def to_hash
diff --git a/rbi/increase/models/simulations/real_time_payments_transfer_complete_params.rbi b/rbi/increase/models/simulations/real_time_payments_transfer_complete_params.rbi
index b6e83ef63..85277e812 100644
--- a/rbi/increase/models/simulations/real_time_payments_transfer_complete_params.rbi
+++ b/rbi/increase/models/simulations/real_time_payments_transfer_complete_params.rbi
@@ -8,7 +8,12 @@ module Increase
         include Increase::Internal::Type::RequestParameters
 
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::Simulations::RealTimePaymentsTransferCompleteParams,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # If set, the simulation will reject the transfer.
         sig do
@@ -56,7 +61,12 @@ module Increase
 
         class Rejection < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::Simulations::RealTimePaymentsTransferCompleteParams::Rejection,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # The reason code that the simulated rejection will have.
           sig do
diff --git a/rbi/increase/models/simulations/wire_transfer_reverse_params.rbi b/rbi/increase/models/simulations/wire_transfer_reverse_params.rbi
index 8381b76f5..790dfa518 100644
--- a/rbi/increase/models/simulations/wire_transfer_reverse_params.rbi
+++ b/rbi/increase/models/simulations/wire_transfer_reverse_params.rbi
@@ -8,7 +8,12 @@ module Increase
         include Increase::Internal::Type::RequestParameters
 
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::Simulations::WireTransferReverseParams,
+              Increase::Internal::AnyHash
+            )
+          end
 
         sig do
           params(request_options: Increase::RequestOptions::OrHash).returns(
diff --git a/rbi/increase/models/simulations/wire_transfer_submit_params.rbi b/rbi/increase/models/simulations/wire_transfer_submit_params.rbi
index 193fbad52..a478875a4 100644
--- a/rbi/increase/models/simulations/wire_transfer_submit_params.rbi
+++ b/rbi/increase/models/simulations/wire_transfer_submit_params.rbi
@@ -8,7 +8,12 @@ module Increase
         include Increase::Internal::Type::RequestParameters
 
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::Simulations::WireTransferSubmitParams,
+              Increase::Internal::AnyHash
+            )
+          end
 
         sig do
           params(request_options: Increase::RequestOptions::OrHash).returns(
diff --git a/rbi/increase/models/supplemental_document_create_params.rbi b/rbi/increase/models/supplemental_document_create_params.rbi
index 45ef3a215..21acbbd45 100644
--- a/rbi/increase/models/supplemental_document_create_params.rbi
+++ b/rbi/increase/models/supplemental_document_create_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::SupplementalDocumentCreateParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       # The identifier of the Entity to associate with the supplemental document.
       sig { returns(String) }
diff --git a/rbi/increase/models/supplemental_document_list_params.rbi b/rbi/increase/models/supplemental_document_list_params.rbi
index 8a16b86d1..403ccea99 100644
--- a/rbi/increase/models/supplemental_document_list_params.rbi
+++ b/rbi/increase/models/supplemental_document_list_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::SupplementalDocumentListParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       # The identifier of the Entity to list supplemental documents for.
       sig { returns(String) }
diff --git a/rbi/increase/models/transaction.rbi b/rbi/increase/models/transaction.rbi
index 5787f72aa..e7a22ae2a 100644
--- a/rbi/increase/models/transaction.rbi
+++ b/rbi/increase/models/transaction.rbi
@@ -3,7 +3,10 @@
 module Increase
   module Models
     class Transaction < Increase::Internal::Type::BaseModel
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(Increase::Transaction, Increase::Internal::AnyHash)
+        end
 
       # The Transaction identifier.
       sig { returns(String) }
@@ -197,7 +200,9 @@ module Increase
 
       class Source < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(Increase::Transaction::Source, Increase::Internal::AnyHash)
+          end
 
         # An Account Transfer Intention object. This field will be present in the JSON
         # response if and only if `category` is equal to `account_transfer_intention`. Two
@@ -1142,7 +1147,12 @@ module Increase
 
         class AccountTransferIntention < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::Transaction::Source::AccountTransferIntention,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # The pending amount in the minor unit of the transaction's currency. For dollars,
           # for example, this is cents.
@@ -1293,7 +1303,12 @@ module Increase
 
         class ACHTransferIntention < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::Transaction::Source::ACHTransferIntention,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # The account number for the destination account.
           sig { returns(String) }
@@ -1363,7 +1378,12 @@ module Increase
 
         class ACHTransferRejection < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::Transaction::Source::ACHTransferRejection,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # The identifier of the ACH Transfer that led to this Transaction.
           sig { returns(String) }
@@ -1387,7 +1407,12 @@ module Increase
 
         class ACHTransferReturn < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::Transaction::Source::ACHTransferReturn,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # The [ISO 8601](https://en.wikipedia.org/wiki/ISO_8601) date and time at which
           # the transfer was created.
@@ -1994,7 +2019,12 @@ module Increase
 
         class CardDisputeAcceptance < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::Transaction::Source::CardDisputeAcceptance,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # The [ISO 8601](https://en.wikipedia.org/wiki/ISO_8601) date and time at which
           # the Card Dispute was accepted.
@@ -2047,7 +2077,12 @@ module Increase
 
         class CardDisputeLoss < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::Transaction::Source::CardDisputeLoss,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # The identifier of the Card Dispute that was lost.
           sig { returns(String) }
@@ -2108,7 +2143,12 @@ module Increase
 
         class CardRefund < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::Transaction::Source::CardRefund,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # The Card Refund identifier.
           sig { returns(String) }
@@ -2387,7 +2427,12 @@ module Increase
 
           class Cashback < Increase::Internal::Type::BaseModel
             OrHash =
-              T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+              T.type_alias do
+                T.any(
+                  Increase::Transaction::Source::CardRefund::Cashback,
+                  Increase::Internal::AnyHash
+                )
+              end
 
             # The cashback amount given as a string containing a decimal number. The amount is
             # a positive number if it will be credited to you (e.g., settlements) and a
@@ -2570,7 +2615,12 @@ module Increase
 
           class Interchange < Increase::Internal::Type::BaseModel
             OrHash =
-              T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+              T.type_alias do
+                T.any(
+                  Increase::Transaction::Source::CardRefund::Interchange,
+                  Increase::Internal::AnyHash
+                )
+              end
 
             # The interchange amount given as a string containing a decimal number in major
             # units (so e.g., "3.14" for $3.14). The amount is a positive number if it is
@@ -2698,7 +2748,12 @@ module Increase
 
           class NetworkIdentifiers < Increase::Internal::Type::BaseModel
             OrHash =
-              T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+              T.type_alias do
+                T.any(
+                  Increase::Transaction::Source::CardRefund::NetworkIdentifiers,
+                  Increase::Internal::AnyHash
+                )
+              end
 
             # A network assigned business ID that identifies the acquirer that processed this
             # transaction.
@@ -2749,7 +2804,12 @@ module Increase
 
           class PurchaseDetails < Increase::Internal::Type::BaseModel
             OrHash =
-              T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+              T.type_alias do
+                T.any(
+                  Increase::Transaction::Source::CardRefund::PurchaseDetails,
+                  Increase::Internal::AnyHash
+                )
+              end
 
             # Fields specific to car rentals.
             sig do
@@ -2934,7 +2994,12 @@ module Increase
 
             class CarRental < Increase::Internal::Type::BaseModel
               OrHash =
-                T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+                T.type_alias do
+                  T.any(
+                    Increase::Transaction::Source::CardRefund::PurchaseDetails::CarRental,
+                    Increase::Internal::AnyHash
+                  )
+                end
 
               # Code indicating the vehicle's class.
               sig { returns(T.nilable(String)) }
@@ -3230,7 +3295,12 @@ module Increase
 
             class Lodging < Increase::Internal::Type::BaseModel
               OrHash =
-                T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+                T.type_alias do
+                  T.any(
+                    Increase::Transaction::Source::CardRefund::PurchaseDetails::Lodging,
+                    Increase::Internal::AnyHash
+                  )
+                end
 
               # Date the customer checked in.
               sig { returns(T.nilable(Date)) }
@@ -3590,7 +3660,12 @@ module Increase
 
             class Travel < Increase::Internal::Type::BaseModel
               OrHash =
-                T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+                T.type_alias do
+                  T.any(
+                    Increase::Transaction::Source::CardRefund::PurchaseDetails::Travel,
+                    Increase::Internal::AnyHash
+                  )
+                end
 
               # Ancillary purchases in addition to the airfare.
               sig do
@@ -3785,7 +3860,10 @@ module Increase
               class Ancillary < Increase::Internal::Type::BaseModel
                 OrHash =
                   T.type_alias do
-                    T.any(T.self_type, Increase::Internal::AnyHash)
+                    T.any(
+                      Increase::Transaction::Source::CardRefund::PurchaseDetails::Travel::Ancillary,
+                      Increase::Internal::AnyHash
+                    )
                   end
 
                 # If this purchase has a connection or relationship to another purchase, such as a
@@ -3929,7 +4007,10 @@ module Increase
                 class Service < Increase::Internal::Type::BaseModel
                   OrHash =
                     T.type_alias do
-                      T.any(T.self_type, Increase::Internal::AnyHash)
+                      T.any(
+                        Increase::Transaction::Source::CardRefund::PurchaseDetails::Travel::Ancillary::Service,
+                        Increase::Internal::AnyHash
+                      )
                     end
 
                   # Category of the ancillary service.
@@ -4323,7 +4404,10 @@ module Increase
               class TripLeg < Increase::Internal::Type::BaseModel
                 OrHash =
                   T.type_alias do
-                    T.any(T.self_type, Increase::Internal::AnyHash)
+                    T.any(
+                      Increase::Transaction::Source::CardRefund::PurchaseDetails::Travel::TripLeg,
+                      Increase::Internal::AnyHash
+                    )
                   end
 
                 # Carrier code (e.g., United Airlines, Jet Blue, etc.).
@@ -4482,7 +4566,12 @@ module Increase
 
         class CardRevenuePayment < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::Transaction::Source::CardRevenuePayment,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # The amount in the minor unit of the transaction's currency. For dollars, for
           # example, this is cents.
@@ -4624,7 +4713,12 @@ module Increase
 
         class CardSettlement < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::Transaction::Source::CardSettlement,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # The Card Settlement identifier.
           sig { returns(String) }
@@ -4924,7 +5018,12 @@ module Increase
 
           class Cashback < Increase::Internal::Type::BaseModel
             OrHash =
-              T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+              T.type_alias do
+                T.any(
+                  Increase::Transaction::Source::CardSettlement::Cashback,
+                  Increase::Internal::AnyHash
+                )
+              end
 
             # The cashback amount given as a string containing a decimal number. The amount is
             # a positive number if it will be credited to you (e.g., settlements) and a
@@ -5107,7 +5206,12 @@ module Increase
 
           class Interchange < Increase::Internal::Type::BaseModel
             OrHash =
-              T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+              T.type_alias do
+                T.any(
+                  Increase::Transaction::Source::CardSettlement::Interchange,
+                  Increase::Internal::AnyHash
+                )
+              end
 
             # The interchange amount given as a string containing a decimal number in major
             # units (so e.g., "3.14" for $3.14). The amount is a positive number if it is
@@ -5235,7 +5339,12 @@ module Increase
 
           class NetworkIdentifiers < Increase::Internal::Type::BaseModel
             OrHash =
-              T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+              T.type_alias do
+                T.any(
+                  Increase::Transaction::Source::CardSettlement::NetworkIdentifiers,
+                  Increase::Internal::AnyHash
+                )
+              end
 
             # A network assigned business ID that identifies the acquirer that processed this
             # transaction.
@@ -5286,7 +5395,12 @@ module Increase
 
           class PurchaseDetails < Increase::Internal::Type::BaseModel
             OrHash =
-              T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+              T.type_alias do
+                T.any(
+                  Increase::Transaction::Source::CardSettlement::PurchaseDetails,
+                  Increase::Internal::AnyHash
+                )
+              end
 
             # Fields specific to car rentals.
             sig do
@@ -5471,7 +5585,12 @@ module Increase
 
             class CarRental < Increase::Internal::Type::BaseModel
               OrHash =
-                T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+                T.type_alias do
+                  T.any(
+                    Increase::Transaction::Source::CardSettlement::PurchaseDetails::CarRental,
+                    Increase::Internal::AnyHash
+                  )
+                end
 
               # Code indicating the vehicle's class.
               sig { returns(T.nilable(String)) }
@@ -5767,7 +5886,12 @@ module Increase
 
             class Lodging < Increase::Internal::Type::BaseModel
               OrHash =
-                T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+                T.type_alias do
+                  T.any(
+                    Increase::Transaction::Source::CardSettlement::PurchaseDetails::Lodging,
+                    Increase::Internal::AnyHash
+                  )
+                end
 
               # Date the customer checked in.
               sig { returns(T.nilable(Date)) }
@@ -6127,7 +6251,12 @@ module Increase
 
             class Travel < Increase::Internal::Type::BaseModel
               OrHash =
-                T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+                T.type_alias do
+                  T.any(
+                    Increase::Transaction::Source::CardSettlement::PurchaseDetails::Travel,
+                    Increase::Internal::AnyHash
+                  )
+                end
 
               # Ancillary purchases in addition to the airfare.
               sig do
@@ -6322,7 +6451,10 @@ module Increase
               class Ancillary < Increase::Internal::Type::BaseModel
                 OrHash =
                   T.type_alias do
-                    T.any(T.self_type, Increase::Internal::AnyHash)
+                    T.any(
+                      Increase::Transaction::Source::CardSettlement::PurchaseDetails::Travel::Ancillary,
+                      Increase::Internal::AnyHash
+                    )
                   end
 
                 # If this purchase has a connection or relationship to another purchase, such as a
@@ -6466,7 +6598,10 @@ module Increase
                 class Service < Increase::Internal::Type::BaseModel
                   OrHash =
                     T.type_alias do
-                      T.any(T.self_type, Increase::Internal::AnyHash)
+                      T.any(
+                        Increase::Transaction::Source::CardSettlement::PurchaseDetails::Travel::Ancillary::Service,
+                        Increase::Internal::AnyHash
+                      )
                     end
 
                   # Category of the ancillary service.
@@ -6860,7 +6995,10 @@ module Increase
               class TripLeg < Increase::Internal::Type::BaseModel
                 OrHash =
                   T.type_alias do
-                    T.any(T.self_type, Increase::Internal::AnyHash)
+                    T.any(
+                      Increase::Transaction::Source::CardSettlement::PurchaseDetails::Travel::TripLeg,
+                      Increase::Internal::AnyHash
+                    )
                   end
 
                 # Carrier code (e.g., United Airlines, Jet Blue, etc.).
@@ -7022,7 +7160,12 @@ module Increase
 
         class CashbackPayment < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::Transaction::Source::CashbackPayment,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # The card on which the cashback was accrued.
           sig { returns(T.nilable(String)) }
@@ -7392,7 +7535,12 @@ module Increase
 
         class CheckDepositAcceptance < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::Transaction::Source::CheckDepositAcceptance,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # The account number printed on the check.
           sig { returns(String) }
@@ -7556,7 +7704,12 @@ module Increase
 
         class CheckDepositReturn < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::Transaction::Source::CheckDepositReturn,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # The returned amount in USD cents.
           sig { returns(Integer) }
@@ -7926,7 +8079,12 @@ module Increase
 
         class CheckTransferDeposit < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::Transaction::Source::CheckTransferDeposit,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # The identifier of the API File object containing an image of the back of the
           # deposited check.
@@ -8065,7 +8223,12 @@ module Increase
 
         class FeePayment < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::Transaction::Source::FeePayment,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # The amount in the minor unit of the transaction's currency. For dollars, for
           # example, this is cents.
@@ -8199,7 +8362,12 @@ module Increase
 
         class InboundACHTransfer < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::Transaction::Source::InboundACHTransfer,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # Additional information sent from the originator.
           sig do
@@ -8346,7 +8514,12 @@ module Increase
 
           class Addenda < Increase::Internal::Type::BaseModel
             OrHash =
-              T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+              T.type_alias do
+                T.any(
+                  Increase::Transaction::Source::InboundACHTransfer::Addenda,
+                  Increase::Internal::AnyHash
+                )
+              end
 
             # The type of addendum.
             sig do
@@ -8443,7 +8616,12 @@ module Increase
 
             class Freeform < Increase::Internal::Type::BaseModel
               OrHash =
-                T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+                T.type_alias do
+                  T.any(
+                    Increase::Transaction::Source::InboundACHTransfer::Addenda::Freeform,
+                    Increase::Internal::AnyHash
+                  )
+                end
 
               # Each entry represents an addendum received from the originator.
               sig do
@@ -8486,7 +8664,10 @@ module Increase
               class Entry < Increase::Internal::Type::BaseModel
                 OrHash =
                   T.type_alias do
-                    T.any(T.self_type, Increase::Internal::AnyHash)
+                    T.any(
+                      Increase::Transaction::Source::InboundACHTransfer::Addenda::Freeform::Entry,
+                      Increase::Internal::AnyHash
+                    )
                   end
 
                 # The payment related information passed in the addendum.
@@ -8516,7 +8697,12 @@ module Increase
 
         class InboundACHTransferReturnIntention < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::Transaction::Source::InboundACHTransferReturnIntention,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # The ID of the Inbound ACH Transfer that is being returned.
           sig { returns(String) }
@@ -8543,7 +8729,12 @@ module Increase
 
         class InboundCheckAdjustment < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::Transaction::Source::InboundCheckAdjustment,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # The ID of the transaction that was adjusted.
           sig { returns(String) }
@@ -8651,7 +8842,12 @@ module Increase
 
         class InboundCheckDepositReturnIntention < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::Transaction::Source::InboundCheckDepositReturnIntention,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # The ID of the Inbound Check Deposit that is being returned.
           sig { returns(String) }
@@ -8694,7 +8890,12 @@ module Increase
 
         class InboundRealTimePaymentsTransferConfirmation < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::Transaction::Source::InboundRealTimePaymentsTransferConfirmation,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # The amount in the minor unit of the transfer's currency. For dollars, for
           # example, this is cents.
@@ -8870,7 +9071,12 @@ module Increase
 
         class InboundRealTimePaymentsTransferDecline < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::Transaction::Source::InboundRealTimePaymentsTransferDecline,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # The declined amount in the minor unit of the destination account currency. For
           # dollars, for example, this is cents.
@@ -9127,7 +9333,12 @@ module Increase
 
         class InboundWireReversal < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::Transaction::Source::InboundWireReversal,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # The amount that was reversed in USD cents.
           sig { returns(Integer) }
@@ -9302,7 +9513,12 @@ module Increase
 
         class InboundWireTransfer < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::Transaction::Source::InboundWireTransfer,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # The amount in USD cents.
           sig { returns(Integer) }
@@ -9486,7 +9702,12 @@ module Increase
 
         class InboundWireTransferReversal < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::Transaction::Source::InboundWireTransferReversal,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # The ID of the Inbound Wire Transfer that is being reversed.
           sig { returns(String) }
@@ -9513,7 +9734,12 @@ module Increase
 
         class InterestPayment < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::Transaction::Source::InterestPayment,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # The account on which the interest was accrued.
           sig { returns(String) }
@@ -9656,7 +9882,12 @@ module Increase
 
         class InternalSource < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::Transaction::Source::InternalSource,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # The amount in the minor unit of the transaction's currency. For dollars, for
           # example, this is cents.
@@ -9920,7 +10151,12 @@ module Increase
 
         class RealTimePaymentsTransferAcknowledgement < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::Transaction::Source::RealTimePaymentsTransferAcknowledgement,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # The transfer amount in USD cents.
           sig { returns(Integer) }
@@ -9987,7 +10223,12 @@ module Increase
 
         class SampleFunds < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::Transaction::Source::SampleFunds,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # Where the sample funds came from.
           sig { returns(String) }
@@ -10010,7 +10251,12 @@ module Increase
 
         class SwiftTransferIntention < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::Transaction::Source::SwiftTransferIntention,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # The identifier of the Swift Transfer that led to this Transaction.
           sig { returns(String) }
@@ -10033,7 +10279,12 @@ module Increase
 
         class WireTransferIntention < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::Transaction::Source::WireTransferIntention,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # The destination account number.
           sig { returns(String) }
diff --git a/rbi/increase/models/transaction_list_params.rbi b/rbi/increase/models/transaction_list_params.rbi
index 95a4f5c22..ee85b16af 100644
--- a/rbi/increase/models/transaction_list_params.rbi
+++ b/rbi/increase/models/transaction_list_params.rbi
@@ -6,7 +6,10 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(Increase::TransactionListParams, Increase::Internal::AnyHash)
+        end
 
       # Filter Transactions for those belonging to the specified Account.
       sig { returns(T.nilable(String)) }
@@ -102,7 +105,12 @@ module Increase
 
       class Category < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::TransactionListParams::Category,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # Return results whose value is in the provided list. For GET requests, this
         # should be encoded as a comma-delimited string, such as `?in=one,two,three`.
@@ -382,7 +390,12 @@ module Increase
 
       class CreatedAt < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::TransactionListParams::CreatedAt,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # Return results after this [ISO 8601](https://en.wikipedia.org/wiki/ISO_8601)
         # timestamp.
diff --git a/rbi/increase/models/transaction_retrieve_params.rbi b/rbi/increase/models/transaction_retrieve_params.rbi
index 1af6c00e7..d6c34ced4 100644
--- a/rbi/increase/models/transaction_retrieve_params.rbi
+++ b/rbi/increase/models/transaction_retrieve_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::TransactionRetrieveParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       sig do
         params(request_options: Increase::RequestOptions::OrHash).returns(
diff --git a/rbi/increase/models/wire_drawdown_request.rbi b/rbi/increase/models/wire_drawdown_request.rbi
index 6c1d7e9fc..0cff72bc9 100644
--- a/rbi/increase/models/wire_drawdown_request.rbi
+++ b/rbi/increase/models/wire_drawdown_request.rbi
@@ -3,7 +3,10 @@
 module Increase
   module Models
     class WireDrawdownRequest < Increase::Internal::Type::BaseModel
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(Increase::WireDrawdownRequest, Increase::Internal::AnyHash)
+        end
 
       # The Wire drawdown request identifier.
       sig { returns(String) }
@@ -259,7 +262,12 @@ module Increase
 
       class Submission < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::WireDrawdownRequest::Submission,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # The input message accountability data (IMAD) uniquely identifying the submission
         # with Fedwire.
diff --git a/rbi/increase/models/wire_drawdown_request_create_params.rbi b/rbi/increase/models/wire_drawdown_request_create_params.rbi
index 5f4ca4ee1..4bb93a2c4 100644
--- a/rbi/increase/models/wire_drawdown_request_create_params.rbi
+++ b/rbi/increase/models/wire_drawdown_request_create_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::WireDrawdownRequestCreateParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       # The Account Number to which the recipient should send funds.
       sig { returns(String) }
diff --git a/rbi/increase/models/wire_drawdown_request_list_params.rbi b/rbi/increase/models/wire_drawdown_request_list_params.rbi
index d00252df5..0ee88d137 100644
--- a/rbi/increase/models/wire_drawdown_request_list_params.rbi
+++ b/rbi/increase/models/wire_drawdown_request_list_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::WireDrawdownRequestListParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       # Return the page of entries after this one.
       sig { returns(T.nilable(String)) }
@@ -86,7 +92,12 @@ module Increase
 
       class Status < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::WireDrawdownRequestListParams::Status,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # Filter Wire Drawdown Requests for those with the specified status. For GET
         # requests, this should be encoded as a comma-delimited string, such as
diff --git a/rbi/increase/models/wire_drawdown_request_retrieve_params.rbi b/rbi/increase/models/wire_drawdown_request_retrieve_params.rbi
index e1e673635..ce66a70a0 100644
--- a/rbi/increase/models/wire_drawdown_request_retrieve_params.rbi
+++ b/rbi/increase/models/wire_drawdown_request_retrieve_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::WireDrawdownRequestRetrieveParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       sig do
         params(request_options: Increase::RequestOptions::OrHash).returns(
diff --git a/rbi/increase/models/wire_transfer.rbi b/rbi/increase/models/wire_transfer.rbi
index 4998544cb..a39f912ae 100644
--- a/rbi/increase/models/wire_transfer.rbi
+++ b/rbi/increase/models/wire_transfer.rbi
@@ -3,7 +3,10 @@
 module Increase
   module Models
     class WireTransfer < Increase::Internal::Type::BaseModel
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(Increase::WireTransfer, Increase::Internal::AnyHash)
+        end
 
       # The wire transfer's identifier.
       sig { returns(String) }
@@ -315,7 +318,9 @@ module Increase
 
       class Approval < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(Increase::WireTransfer::Approval, Increase::Internal::AnyHash)
+          end
 
         # The [ISO 8601](https://en.wikipedia.org/wiki/ISO_8601) date and time at which
         # the transfer was approved.
@@ -355,7 +360,12 @@ module Increase
 
       class Cancellation < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::WireTransfer::Cancellation,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # The [ISO 8601](https://en.wikipedia.org/wiki/ISO_8601) date and time at which
         # the Transfer was canceled.
@@ -395,7 +405,12 @@ module Increase
 
       class CreatedBy < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::WireTransfer::CreatedBy,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # If present, details about the API key that created the transfer.
         sig { returns(T.nilable(Increase::WireTransfer::CreatedBy::APIKey)) }
@@ -486,7 +501,12 @@ module Increase
 
         class APIKey < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::WireTransfer::CreatedBy::APIKey,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # The description set for the API key when it was created.
           sig { returns(T.nilable(String)) }
@@ -551,7 +571,12 @@ module Increase
 
         class OAuthApplication < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::WireTransfer::CreatedBy::OAuthApplication,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # The name of the OAuth Application.
           sig { returns(String) }
@@ -572,7 +597,12 @@ module Increase
 
         class User < Increase::Internal::Type::BaseModel
           OrHash =
-            T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+            T.type_alias do
+              T.any(
+                Increase::WireTransfer::CreatedBy::User,
+                Increase::Internal::AnyHash
+              )
+            end
 
           # The email address of the User.
           sig { returns(String) }
@@ -649,7 +679,9 @@ module Increase
 
       class Reversal < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(Increase::WireTransfer::Reversal, Increase::Internal::AnyHash)
+          end
 
         # The amount that was reversed in USD cents.
         sig { returns(Integer) }
@@ -879,7 +911,12 @@ module Increase
 
       class Submission < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::WireTransfer::Submission,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # The accountability data for the submission.
         sig { returns(String) }
diff --git a/rbi/increase/models/wire_transfer_approve_params.rbi b/rbi/increase/models/wire_transfer_approve_params.rbi
index 665146dd1..b3af7bfae 100644
--- a/rbi/increase/models/wire_transfer_approve_params.rbi
+++ b/rbi/increase/models/wire_transfer_approve_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::WireTransferApproveParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       sig do
         params(request_options: Increase::RequestOptions::OrHash).returns(
diff --git a/rbi/increase/models/wire_transfer_cancel_params.rbi b/rbi/increase/models/wire_transfer_cancel_params.rbi
index 853e44462..4d7e96ab6 100644
--- a/rbi/increase/models/wire_transfer_cancel_params.rbi
+++ b/rbi/increase/models/wire_transfer_cancel_params.rbi
@@ -6,7 +6,10 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(Increase::WireTransferCancelParams, Increase::Internal::AnyHash)
+        end
 
       sig do
         params(request_options: Increase::RequestOptions::OrHash).returns(
diff --git a/rbi/increase/models/wire_transfer_create_params.rbi b/rbi/increase/models/wire_transfer_create_params.rbi
index dd9f585d3..17471c0c6 100644
--- a/rbi/increase/models/wire_transfer_create_params.rbi
+++ b/rbi/increase/models/wire_transfer_create_params.rbi
@@ -6,7 +6,10 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(Increase::WireTransferCreateParams, Increase::Internal::AnyHash)
+        end
 
       # The identifier for the account that will send the transfer.
       sig { returns(String) }
diff --git a/rbi/increase/models/wire_transfer_list_params.rbi b/rbi/increase/models/wire_transfer_list_params.rbi
index cdb55776e..ebe5f51f0 100644
--- a/rbi/increase/models/wire_transfer_list_params.rbi
+++ b/rbi/increase/models/wire_transfer_list_params.rbi
@@ -6,7 +6,10 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(Increase::WireTransferListParams, Increase::Internal::AnyHash)
+        end
 
       # Filter Wire Transfers to those belonging to the specified Account.
       sig { returns(T.nilable(String)) }
@@ -106,7 +109,12 @@ module Increase
 
       class CreatedAt < Increase::Internal::Type::BaseModel
         OrHash =
-          T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+          T.type_alias do
+            T.any(
+              Increase::WireTransferListParams::CreatedAt,
+              Increase::Internal::AnyHash
+            )
+          end
 
         # Return results after this [ISO 8601](https://en.wikipedia.org/wiki/ISO_8601)
         # timestamp.
diff --git a/rbi/increase/models/wire_transfer_retrieve_params.rbi b/rbi/increase/models/wire_transfer_retrieve_params.rbi
index d9778ae9f..227c20727 100644
--- a/rbi/increase/models/wire_transfer_retrieve_params.rbi
+++ b/rbi/increase/models/wire_transfer_retrieve_params.rbi
@@ -6,7 +6,13 @@ module Increase
       extend Increase::Internal::Type::RequestParameters::Converter
       include Increase::Internal::Type::RequestParameters
 
-      OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+      OrHash =
+        T.type_alias do
+          T.any(
+            Increase::WireTransferRetrieveParams,
+            Increase::Internal::AnyHash
+          )
+        end
 
       sig do
         params(request_options: Increase::RequestOptions::OrHash).returns(
diff --git a/rbi/increase/request_options.rbi b/rbi/increase/request_options.rbi
index 3d9c05c1d..3259a476a 100644
--- a/rbi/increase/request_options.rbi
+++ b/rbi/increase/request_options.rbi
@@ -7,7 +7,10 @@ module Increase
   # When making a request, you can pass an actual {RequestOptions} instance, or
   # simply pass a Hash with symbol keys matching the attributes on this class.
   class RequestOptions < Increase::Internal::Type::BaseModel
-    OrHash = T.type_alias { T.any(T.self_type, Increase::Internal::AnyHash) }
+    OrHash =
+      T.type_alias do
+        T.any(Increase::RequestOptions, Increase::Internal::AnyHash)
+      end
 
     # @api private
     sig { params(opts: Increase::RequestOptions::OrHash).void }
diff --git a/rbi/increase/resources/simulations/programs.rbi b/rbi/increase/resources/simulations/programs.rbi
index 6fe46cc0b..f7d640e8b 100644
--- a/rbi/increase/resources/simulations/programs.rbi
+++ b/rbi/increase/resources/simulations/programs.rbi
@@ -11,12 +11,15 @@ module Increase
         sig do
           params(
             name: String,
+            reserve_account_id: String,
             request_options: Increase::RequestOptions::OrHash
           ).returns(Increase::Program)
         end
         def create(
           # The name of the program being added.
           name:,
+          # The identifier of the Account the Program should be added to is for.
+          reserve_account_id: nil,
           request_options: {}
         )
         end
diff --git a/sig/increase/internal.rbs b/sig/increase/internal.rbs
index 871f40835..bc54d08f5 100644
--- a/sig/increase/internal.rbs
+++ b/sig/increase/internal.rbs
@@ -1,5 +1,7 @@
 module Increase
   module Internal
+    extend Increase::Internal::Util::SorbetRuntimeSupport
+
     OMIT: Object
   end
 end
diff --git a/sig/increase/internal/transport/base_client.rbs b/sig/increase/internal/transport/base_client.rbs
index ef890770b..e285abac6 100644
--- a/sig/increase/internal/transport/base_client.rbs
+++ b/sig/increase/internal/transport/base_client.rbs
@@ -2,6 +2,8 @@ module Increase
   module Internal
     module Transport
       class BaseClient
+        extend Increase::Internal::Util::SorbetRuntimeSupport
+
         type request_components =
           {
             method: Symbol,
@@ -20,7 +22,6 @@ module Increase
             model: Increase::Internal::Type::Converter::input?,
             options: Increase::request_opts?
           }
-
         type request_input =
           {
             method: Symbol,
diff --git a/sig/increase/internal/transport/pooled_net_requester.rbs b/sig/increase/internal/transport/pooled_net_requester.rbs
index b504fb383..26b6bb6ed 100644
--- a/sig/increase/internal/transport/pooled_net_requester.rbs
+++ b/sig/increase/internal/transport/pooled_net_requester.rbs
@@ -2,6 +2,8 @@ module Increase
   module Internal
     module Transport
       class PooledNetRequester
+        extend Increase::Internal::Util::SorbetRuntimeSupport
+
         type request =
           {
             method: Symbol,
diff --git a/sig/increase/internal/type/array_of.rbs b/sig/increase/internal/type/array_of.rbs
index 7e41c01f1..f73fc2453 100644
--- a/sig/increase/internal/type/array_of.rbs
+++ b/sig/increase/internal/type/array_of.rbs
@@ -9,7 +9,7 @@ module Increase
           | ^-> Increase::Internal::Type::Converter::input
           | Increase::Internal::Type::Converter::input type_info,
           ?::Hash[Symbol, top] spec
-        ) -> instance
+        ) -> self
 
         def ===: (top other) -> bool
 
diff --git a/sig/increase/internal/type/base_model.rbs b/sig/increase/internal/type/base_model.rbs
index ba45d394b..cb08e4e90 100644
--- a/sig/increase/internal/type/base_model.rbs
+++ b/sig/increase/internal/type/base_model.rbs
@@ -3,10 +3,13 @@ module Increase
     module Type
       class BaseModel
         extend Increase::Internal::Type::Converter
+        extend Increase::Internal::Util::SorbetRuntimeSupport
 
         type known_field =
           { mode: (:coerce | :dump)?, required: bool, nilable: bool }
 
+        def self.inherited: (self child) -> void
+
         def self.known_fields: -> ::Hash[Symbol, (Increase::Internal::Type::BaseModel::known_field
         & { type_fn: (^-> Increase::Internal::Type::Converter::input) })]
 
@@ -58,10 +61,10 @@ module Increase
         def self.coerce: (
           Increase::Internal::Type::BaseModel | ::Hash[top, top] | top value,
           state: Increase::Internal::Type::Converter::coerce_state
-        ) -> (instance | top)
+        ) -> (self | top)
 
         def self.dump: (
-          instance | top value,
+          self | top value,
           state: Increase::Internal::Type::Converter::dump_state
         ) -> (::Hash[top, top] | top)
 
diff --git a/sig/increase/internal/type/converter.rbs b/sig/increase/internal/type/converter.rbs
index 9d3581664..00f462ae8 100644
--- a/sig/increase/internal/type/converter.rbs
+++ b/sig/increase/internal/type/converter.rbs
@@ -2,6 +2,8 @@ module Increase
   module Internal
     module Type
       module Converter
+        extend Increase::Internal::Util::SorbetRuntimeSupport
+
         type input = Increase::Internal::Type::Converter | Class
 
         type coerce_state =
diff --git a/sig/increase/internal/type/enum.rbs b/sig/increase/internal/type/enum.rbs
index 6dbd0cd36..6acd8ddc8 100644
--- a/sig/increase/internal/type/enum.rbs
+++ b/sig/increase/internal/type/enum.rbs
@@ -3,6 +3,7 @@ module Increase
     module Type
       module Enum
         include Increase::Internal::Type::Converter
+        include Increase::Internal::Util::SorbetRuntimeSupport
 
         def self.values: -> ::Array[(nil | bool | Integer | Float | Symbol)]
 
diff --git a/sig/increase/internal/type/hash_of.rbs b/sig/increase/internal/type/hash_of.rbs
index 870585e14..2e97559c3 100644
--- a/sig/increase/internal/type/hash_of.rbs
+++ b/sig/increase/internal/type/hash_of.rbs
@@ -9,7 +9,7 @@ module Increase
           | ^-> Increase::Internal::Type::Converter::input
           | Increase::Internal::Type::Converter::input type_info,
           ?::Hash[Symbol, top] spec
-        ) -> instance
+        ) -> self
 
         def ===: (top other) -> bool
 
diff --git a/sig/increase/internal/type/union.rbs b/sig/increase/internal/type/union.rbs
index ce537ae83..73c295a5b 100644
--- a/sig/increase/internal/type/union.rbs
+++ b/sig/increase/internal/type/union.rbs
@@ -3,6 +3,7 @@ module Increase
     module Type
       module Union
         include Increase::Internal::Type::Converter
+        include Increase::Internal::Util::SorbetRuntimeSupport
 
         private def self.known_variants: -> ::Array[[Symbol?, (^-> Increase::Internal::Type::Converter::input)]]
 
diff --git a/sig/increase/internal/util.rbs b/sig/increase/internal/util.rbs
index e9ff3963f..6f79420d7 100644
--- a/sig/increase/internal/util.rbs
+++ b/sig/increase/internal/util.rbs
@@ -1,6 +1,8 @@
 module Increase
   module Internal
     module Util
+      extend Increase::Internal::Util::SorbetRuntimeSupport
+
       def self?.monotonic_secs: -> Float
 
       def self?.arch: -> String
@@ -155,6 +157,17 @@ module Increase
       def self?.decode_sse: (
         Enumerable[String] lines
       ) -> Enumerable[Increase::Internal::Util::server_sent_event]
+
+      module SorbetRuntimeSupport
+        class MissingSorbetRuntimeError < ::RuntimeError
+        end
+
+        private def sorbet_runtime_constants: -> ::Hash[Symbol, top]
+
+        def const_missing: (Symbol name) -> void
+
+        def define_sorbet_constant!: (Symbol name) { -> top } -> void
+      end
     end
   end
 end
diff --git a/sig/increase/models/simulations/program_create_params.rbs b/sig/increase/models/simulations/program_create_params.rbs
index 483aa2d92..a011f3836 100644
--- a/sig/increase/models/simulations/program_create_params.rbs
+++ b/sig/increase/models/simulations/program_create_params.rbs
@@ -2,7 +2,8 @@ module Increase
   module Models
     module Simulations
       type program_create_params =
-        { name: String } & Increase::Internal::Type::request_parameters
+        { name: String, reserve_account_id: String }
+        & Increase::Internal::Type::request_parameters
 
       class ProgramCreateParams < Increase::Internal::Type::BaseModel
         extend Increase::Internal::Type::RequestParameters::Converter
@@ -10,8 +11,13 @@ module Increase
 
         attr_accessor name: String
 
+        attr_reader reserve_account_id: String?
+
+        def reserve_account_id=: (String) -> String
+
         def initialize: (
           name: String,
+          ?reserve_account_id: String,
           ?request_options: Increase::request_opts
         ) -> void
       end
diff --git a/sig/increase/resources/simulations/programs.rbs b/sig/increase/resources/simulations/programs.rbs
index 4ab5dd299..eb34240f0 100644
--- a/sig/increase/resources/simulations/programs.rbs
+++ b/sig/increase/resources/simulations/programs.rbs
@@ -4,6 +4,7 @@ module Increase
       class Programs
         def create: (
           name: String,
+          ?reserve_account_id: String,
           ?request_options: Increase::request_opts
         ) -> Increase::Program
 
diff --git a/test/increase/client_test.rb b/test/increase/client_test.rb
index 8cc95edb6..98d5efa77 100644
--- a/test/increase/client_test.rb
+++ b/test/increase/client_test.rb
@@ -3,14 +3,9 @@
 require_relative "test_helper"
 
 class IncreaseTest < Minitest::Test
+  extend Minitest::Serial
   include WebMock::API
 
-  class << self
-    def test_order = :random
-
-    def run_one_method(...) = Minitest::Runnable.run_one_method(...)
-  end
-
   def before_all
     super
     WebMock.enable!
diff --git a/test/increase/internal/sorbet_runtime_support_test.rb b/test/increase/internal/sorbet_runtime_support_test.rb
new file mode 100644
index 000000000..73c980739
--- /dev/null
+++ b/test/increase/internal/sorbet_runtime_support_test.rb
@@ -0,0 +1,49 @@
+# frozen_string_literal: true
+
+require_relative "../test_helper"
+
+class Increase::Test::SorbetRuntimeSupportTest < Minitest::Test
+  i_suck_and_my_tests_are_order_dependent!
+
+  module E
+    extend Increase::Internal::Type::Enum
+
+    define_sorbet_constant!(:TaggedSymbol) { 1 }
+  end
+
+  module U
+    extend Increase::Internal::Type::Union
+
+    define_sorbet_constant!(:Variants) { 2 }
+  end
+
+  class M < Increase::Internal::Type::BaseModel
+    define_sorbet_constant!(:OrHash) { 3 }
+  end
+
+  def test_nil_aliases
+    err = Increase::Internal::Util::SorbetRuntimeSupport::MissingSorbetRuntimeError
+
+    assert_raises(err) { Increase::Internal::AnyHash }
+    assert_raises(err) { Increase::Internal::Type::Converter::Input }
+    assert_raises(err) { Increase::Internal::Type::Converter::CoerceState }
+    assert_raises(err) { Increase::Internal::Type::Converter::DumpState }
+    assert_raises(err) { Increase::Internal::Type::BaseModel::KnownField }
+    assert_raises(err) { Increase::Internal::Util::ParsedUri }
+    assert_raises(err) { Increase::Internal::Util::ServerSentEvent }
+    assert_raises(err) { Increase::Internal::Transport::BaseClient::RequestComponents }
+    assert_raises(err) { Increase::Internal::Transport::BaseClient::RequestInput }
+    assert_raises(err) { Increase::Internal::Transport::PooledNetRequester::Request }
+    assert_raises(err) { E::TaggedSymbol }
+    assert_raises(err) { U::Variants }
+    assert_raises(err) { M::OrHash }
+  end
+
+  def test_stubbed_aliases
+    Kernel.instance_eval { const_set(:T, nil) }
+
+    assert_equal(1, E::TaggedSymbol)
+    assert_equal(2, U::Variants)
+    assert_equal(3, M::OrHash)
+  end
+end
diff --git a/test/increase/test_helper.rb b/test/increase/test_helper.rb
index 0aa6e3144..b5756beaa 100644
--- a/test/increase/test_helper.rb
+++ b/test/increase/test_helper.rb
@@ -52,6 +52,12 @@ def initialize
   end
 end
 
+module Minitest::Serial
+  def test_order = :random
+
+  def run_one_method(...) = Minitest::Runnable.run_one_method(...)
+end
+
 class Minitest::Test
   include Minitest::Hooks