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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 product(self, *bases):
 """ Compute the tensor product with another basis. :param bases: One or more additional bases to form the product with. :return (OperatorBasis):
 The tensor product basis as an OperatorBasis object. """

        if len(bases) > 1:
            basis_rest = bases[0].product(*bases[1:])
        else:
            assert len(bases) == 1
            basis_rest = bases[0]

        labels_ops = [(b1l + b2l, qt.tensor(b1, b2)) for (b1l, b1), (b2l, b2) in
                      itertools.product(self, basis_rest)]

        return OperatorBasis(labels_ops)