【求助】点击消息，打开指定的ability，如何设置参数，以及如何接收参数？

const want = await wantAgent.getWantAgent({
  wants: [
    {
      bundleName: 'com.example.lionharmonydemos',
      abilityName: 'EntryAbility',
      uri: 'key={true,true,false}',
      // 如何传递参数？？如何接收参数？？
      parameters: {
        a: 1,
        b: 2,
      }
    }
  ],
  operationType: wantAgent.OperationType.START_ABILITIES,
  requestCode: 0,
});
const requestParams: notificationManager.NotificationRequest = {
  id: this.notificationIds.becomeFriend,
  content: {
    contentType: notificationManager.ContentType.NOTIFICATION_CONTENT_BASIC_TEXT,
    normal: {
      title: '狮子 申请添加您为好友',
      text: '我是北漂程序员狮子',
      additionalText: '添加好友请求'
    },
  },
};
notificationManager.publish(requestParams)