How to use tty

(() => {
  if (tty.isatty(1) && tty.isatty(2)) {
    if (process.stdout.columns != null) {
      return process.stdout.columns
    } else if (process.stdout.getWindowSize != null) {
      return process.stdout.getWindowSize(1)[0]
    } else if (tty.getWindowSize != null) {
      return tty.getWindowSize()[1]
    }
  }

  return 75
})()

 clazz: tty.ReadStream
},
 clazz: tty.WriteStream
},

 clazz: tty.ReadStream
},
 clazz: tty.WriteStream
},