code: function(authFailHandler) {
      _timeout = null;
      const handshake = _receiveQueue.peekFront();
      authFailHandler(
        Errors.createError(
          'Connection timeout',
          true,
          info,
          '08S01',
          Errors.ER_CONNECTION_TIMEOUT,
          handshake ? handshake.stack : null
        )
      );
    }
docs: Handle connection timeout.
  
  @private