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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 send_response(self, request, result=None, error=None):
 """Respond to a JSON-RPC method call. This is a response to the message in *request*. If *error* is not provided, then this is a succesful response, and the value in *result*, which may be ``None``, is passed back to the client. if *error* is provided and not ``None`` then an error is sent back. In this case *error* must be a dictionary as specified by the JSON-RPC spec. """

        message = self._version.create_response(request, result, error)
        self.send_message(message)