issues with xFormat and yFormat

[hishoss]

xFormat and yFormat seem to have no effect on a graph widget.

in my widgets.py I have:
class MyGraph(GraphWidget):
title = 'My Graph'
def get_data(self):
return [{'x': x, 'y': x} for x in range(5)]

then in dashing-config.js:

employers.addWidget('MyGraph', 'Graph', {
color: 'black',
scope: {
xFormat(n) {
return '(' + n + ')';
},
yFormat(n) {
return '(' + n + ')';
},
},
getData: function () {
var self = this;
Dashing.utils.get('myGraph', function(data) {
$.extend(self.scope, data, {
title: 'Test Graph!',
properties: {
renderer: 'bar',
padding: {
top: 0.1,
right: 0.1
}
},
});
});
},
interval: 2000
});