const example = Machine({
  initial: 'input',
  states: {
    input: {
      on: {
        NEXT: 'example'
      }
    },
    example: {
      initial: 'init',
      states: {
        init: {
          on: { NEXT: 'par' },
        },
        par: {
          type: 'parallel',
          states: {
            first: {
              on: {
                NEXT: '.success'
              }
            },
            second: {
              on: {
                NEXT: '.success'
              }
            }
          }
        }
      }
    },
    success: {},
  }
});