canAddMembers method
See if the given collection of Parts contains non-Links all for which CommandHandler#isValidMember returns true.
The CommandHandler predicate will use CommandHandler#memberValidation and #memberValidation, if either or both are defined.
This does not check Diagram#isReadOnly or Model#isReadOnly, but commands and tools should check those properties. @expose @param {Iterable.
Implementation
_i2.bool canAddMembers(_i3.Iterable<_i3.Part> coll) => _i4.callMethod(
this,
'canAddMembers',
[coll],
);