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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def GetClientsForHash(cls, hash_obj, token=None, age=aff4.NEWEST_TIME):
 """Yields client_files for the specified file store hash. Args: hash_obj: RDFURN that we want to get hits for. token: Security token. age: AFF4 age specification. Only get hits corresponding to the given age spec. Should be aff4.NEWEST_TIME or a time range given as a tuple (start, end) in microseconds since Jan 1st, 1970. If just a microseconds value is given it's treated as the higher end of the range, i.e. (0, age). See aff4.FACTORY.ParseAgeSpecification for details. Yields: RDFURNs corresponding to a client file that has the hash. Raises: ValueError: if age was set to aff4.ALL_TIMES. """


    if age == aff4.ALL_TIMES:
      raise ValueError("age==aff4.ALL_TIMES is not supported.")

    results = cls.GetClientsForHashes([hash_obj], token=token, age=age)
    for _, client_files in results:
      for client_file in client_files:
        yield client_file