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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 make_random_client_id(self):
 """ Returns a random client identifier """

        if PY2:
            return ('py_%s' %
                    base64.b64encode(str(random.randint(1, 0x40000000))))
        else:
            return ('py_%s' %
                    base64.b64encode(bytes(str(random.randint(1, 0x40000000)),
                                     'ascii')))