Generated by XState Viz: https://xstate.js.org/viz

machine.js

const counterMachine = Machine({
  initial: 'red',
  states: {
   red: {
      on: {
        'GO': 'green',
      }
    },
    green: {
      on: {
        'SLOW.DOWN': 'amber'
      }
    },
    amber: {
      on: {
        'STOP': 'red'
      }
    }
  }
});