code: function emitSIGINT() {
      if (rl) {
          rl.close()
          rl = null
      }
      if (ipcListener) {
          process.removeListener("message", ipcListener)
          ipcListener = null
      }
  
      emitter.emit("SIGINT")
  }
docs: Emit SIGINT event.
  @returns {void}