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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 ReadSerialized(cls, json_string):
 # pylint: disable=arguments-differ """Reads an attribute container from serialized form. Args: json_string (str):
 JSON serialized attribute container. Returns: AttributeContainer: attribute container or None. """

    if json_string:
      json_dict = json.loads(json_string)
      return cls.ReadSerializedDict(json_dict)

    return None