message: modify Options
diff: -import { hasTransition, hasTransform, hasTouch } from './util'
  +import {
  + hasTransition,
  + hasTransform,
  + hasTouch,
  + Probe,
  + EventPassthrough
  +} from './util'
  // type
  export type tap = 'tap' | ''
  @@ -129,12 +135,11 @@ export default class Options {
  constructor() {
  this.startX = 0
  this.startY = 0
  -
  this.scrollX = false
  this.scrollY = true
  this.freeScroll = false
  this.directionLockThreshold = 5
  - this.eventPassthrough = ''
  + this.eventPassthrough = EventPassthrough.None
  this.click = false
  this.tap = ''
  @@ -163,7 +168,7 @@ export default class Options {
  this.flickLimitDistance = 100
  this.resizePolling = 60
  - this.probeType = 0
  + this.probeType = Probe.Default
  this.stopPropagation = false
  this.preventDefault = true
  