canStart method
This tool can run when the diagram is not read-only and supports creating new nodes, and when there has been a click (or double-click if #isDoubleClick is true) in the background of the diagram (not on a Part), and #archetypeNodeData is an object that can be copied and added to the model.
This method may be overridden. Please read the Introduction page on Extensions for how to override methods and how to call this base method. @expose @return {boolean}
Implementation
_i2.bool canStart() => _i4.callMethod(
this,
'canStart',
[],
);