Fetch whether unloading is restricted

        :returns: True, if unloading is restricted
        :rtype: :class:`bool`
        :raises: None

def fetch_unload_restriction(self, ):
        """Fetch whether unloading is restricted

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