'Print a help string for this object.
:param (bool) return_help: Return help string instead of prining?
:return: (None|str) Optionally can return help string.'

def help(self, return_help=False):

    object_name = self._name
    path = self._get_path()
    parent_object_names = self._get_parent_object_names()
    help_string = graph_objs_tools.get_help(object_name, path, parent_object_names)
    if return_help:
        return help_string
    print help_string
