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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 _PrepareAttributeContainer(self, attribute_container):
 """Prepares an attribute container for storage. Args: attribute_container (AttributeContainer):
 attribute container. Returns: AttributeContainer: copy of the attribute container to store in the fake storage. """

    attribute_values_hash = hash(attribute_container.GetAttributeValuesString())
    identifier = identifiers.FakeIdentifier(attribute_values_hash)
    attribute_container.SetIdentifier(identifier)

    # Make sure the fake storage preserves the state of the attribute container.
    return copy.deepcopy(attribute_container)