def assemble_children(self):
        children = []
        for group, nodes in self.collect_child_groups():
            children.extend(self.create_children(group, nodes))
            children.append(Action(separator=True))
        if children:
            children.pop()
        return children
Assemble the list of child objects for the menu.
dataset/ETHPy150Open nucleic/enaml/enaml/workbench/ui/menu_helper.py/MenuNode.assemble_children