Import an user story and returns a :class:`UserStory` resource.

        :param subject: subject of the :class:`UserStory`
        :param status: status of the :class:`UserStory`
        :param attrs: optional :class:`UserStory` attributes

def import_user_story(self, subject, status, **attrs):
        """
        Import an user story and returns a :class:`UserStory` resource.

        :param subject: subject of the :class:`UserStory`
        :param status: status of the :class:`UserStory`
        :param attrs: optional :class:`UserStory` attributes
        """
        return UserStories(self.requester).import_(
            self.id, subject, status, **attrs
        )