code: def fetch_unload_restriction(self, ):
          
          inter = self.get_refobjinter()
          restricted = self.status() != self.LOADED or self.get_children_to_delete()
          return restricted or inter.fetch_action_restriction(self, 'unload')
docs: Fetch whether unloading is restricted
  
          :returns: True, if unloading is restricted
          :rtype: :class:`bool`
          :raises: None