docs: def set_enable_flag_keep_rect_within_constraints(self, enable):
          """ Enable/disables the KeepRectangleWithinConstraint for child states """
          for child_state_v in self.child_state_views():
              self.keep_rect_constraints[child_state_v].enable = enable
              child_state_v.keep_rect_constraints[child_state_v._name_view].enable = enable