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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 hash(self, algorithm: Algorithm = None) -> str: # noqa: A003 """Generate random hash. To change hashing algorithm, pass parameter ``algorithm`` with needed value of the enum object :class:`~mimesis.enums.Algorithm` :param algorithm: Enum object :class:`~mimesis.enums.Algorithm`. :return: Hash. :raises NonEnumerableError: if algorithm is not supported. """

        key = self._validate_enum(algorithm, Algorithm)

        if hasattr(hashlib, key):
            fn = getattr(hashlib, key)
            return fn(self.uuid().encode()).hexdigest()