docs: function response(socket, start) {
  
      var diff = process.hrtime(start);
      var nanoseconds = diff[0] * 1e9 + diff[1];
      var bytes = socket.bytesWritten - ~~socket.transferRateBytesWritten;
      var data = (bytes * __byte) / __denominator;
  
      socket.transferRateBytesWritten = socket.bytesWritten; // keep-alive socket
      return (data / (nanoseconds / __time)).toFixed(2) + __out;
    }