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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):
 """ Close the connection. Kills the send and receive threads, as well as closing the underlying socket. """


        if self._recv_thread:
            self._recv_thread.kill()
            self._recv_thread = None

        if self._send_thread:
            self._send_thread.kill()
            self._send_thread = None

        if self._sock:
            self._sock.close()
            self._sock = None

        # Make sure to notify the manager we're closed
        super(TCPTendril, self).close()