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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 handle(self, message, _server=None, _request=None):
 """This generator function handles any incoming message. Write any returned bytes to the output stream. """

        if not message:
            return

        if message[-1] == 0:
            message = message[:-1]

        string = message.decode('utf-8')
        handle = self._handle(json.loads(string), message, _server, _request)
        for out in handle:
            if out == None:
                return
            try:
                yield json.dumps(out, cls=VarlinkEncoder).encode('utf-8')
            except ConnectionError as e:
                try:
                    handle.throw(e)
                except StopIteration:
                    pass