def call(self, action_name, container, instances=None, map_name=None, **kwargs):
        """
        Generic function for running container actions based on a policy.

        :param action_name: Action name.
        :type action_name: unicode | str
        :param container: Container name.
        :type container: unicode | str
        :param instances: Instance names to remove. If not specified, runs on all instances as specified in the
         configuration (or just one default instance).
        :type instances: collections.Iterable[unicode | str | NoneType]
        :param map_name: Container map name. Optional - if not provided the default map is used.
        :type map_name: unicode | str
        :param kwargs: Additional kwargs for the policy method.
        :return: Return values of actions.
        :rtype: list[dockermap.map.runner.ActionOutput]
        """
        return self.run_actions(action_name, container, instances=instances, map_name=map_name, **kwargs)