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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 close(self):
 """ Terminate the network connection to the remote end, if open. If no connection is open, this method does nothing. .. versionadded:: 2.0 """

        if self.is_connected:
            self.client.close()
            if self.forward_agent and self._agent_handler is not None:
                self._agent_handler.close()