text: const Terminable = require('./index.js')
  
  const terminable = new Terminable()
  
  const timeoutId = setTimeout(function () {
    terminable.delete(timeoutId)
    console.log('long running task')
  }, 5000)
  
  const state = terminable.add(timeoutId, function () {
    clearTimeout(timeoutId)
    setTimeout(() => console.log('clean up async'), 500)
  })
  
  process.once('SIGINT', function () {
    state.cleanup()
  })
  
  console.log('Press CTRL+C to skip 5s timeout')
  