def __CastList(self, values):
    if values:
      return values
    else:
      return None
unsubscribe all the clients from the channel except those in the exclude list
dataset/ETHPy150Open CollabQ/CollabQ/.google_appengine/google/appengine/ext/gql/__init__.py/GQL.__CastList--crossover with--dataset/ETHPy150Open urielka/shaveet/shaveet/api.py/unsubscribe_all_channel