@staticmethod
def _get_save_wall_photo(session, photo, server, hash, user_id=None,
    group_id=None):
    """
        https://vk.com/dev/photos.saveWallPhoto
        """
    if group_id < 0:
        group_id = abs(group_id)
    response = session.fetch('photos.saveWallPhoto', photo=photo, server=
        server, hash=hash, user_id=user_id, group_id=group_id)[0]
    return response['id'], response['owner_id']
