如何在Ionic中使用admob中的电容器？

ionic cordova plugin add cordova-plugin-admob-free
npm install @ionic-native/admob-free

import { AdMobFree, AdMobFreeBannerConfig } from '@ionic-native/admob-free';

constructor(private admobFree: AdMobFree) { }

showBanner() {
  const bannerConfig: AdMobFreeBannerConfig = {
    id: 'your-admob-banner-id',
    isTesting: true,
    autoShow: true
  };
  this.admobFree.banner.config(bannerConfig);
  this.admobFree.banner.prepare().then(() => {
    console.log('Banner ad is ready');
  }).catch(err => {
    console.log('Error occurred while preparing banner ad:', err);
  });
}

ionViewDidEnter() {
  this.showBanner();
}