def METHOD_NAME(self):
    params = {}
    if self._auth_keys:
        params['auth'] = utils.join_items_and_encode(self._auth_keys)
    if self._channels:
        params['channel'] = utils.join_channels(self._channels)
    if self._groups:
        params['channel-group'] = utils.join_items_and_encode(self._groups)
    return params