如何实现在同一个UIAbility实例传递事件

import { UIAbility } from '@kit.AbilityKit';

export default class EntryAbility extends UIAbility {
  onForeground() {
    this.context.eventHub.on('myEvent', this.eventFunc);
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// eventFunc is called,undefined,undefined
    this.context.eventHub.emit('myEvent');
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// eventFunc is called,1,undefined
    this.context.eventHub.emit('myEvent', 1);
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// eventFunc is called,1,2
    this.context.eventHub.emit('myEvent', 1, 2);
  }

  eventFunc(argOne: number, argTwo: number) {
    console.log('eventFunc is called, ${argOne}, ${argTwo}');
  }
}
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