def Hint(self, hint):
    if hint is not self.__query_options.hint:
      self.__query_options = datastore_query.QueryOptions(
          hint=hint, config=self.__query_options)
    return self
Sets a hint for how this query should run.
dataset/ETHPy150Open AppScale/appscale/AppServer/google/appengine/api/datastore.py/Query.Hint