title: The `testDeviceID` prop of AdMobBanner is deprecated. Test device IDs are now set globally. Use AdMob.setTestDeviceIDAsync instead
body: <p>I've recently been producing an app on a real-native basis. I also put in an ad banner using Google's admob There is no advertisement that used to appear until a few days ago.
  Setting the admob props below will result in an error.</p>
  
  <pre><code>&lt;AdMobBanner
      bannerSize="banner"
      adUnitID="ca-app-pub-@@@@@@@" 
      testDeviceID="EMULATOR"
      servePersonalizedAds = {true}
      onDidFailToReceiveAdWithError={this.bannerError} 
  /&gt;
  </code></pre>
  
  <p>The errors are as follows.</p>
  
  <pre><code>The `testDeviceID` prop of AdMobBanner is deprecated. Test device IDs are now set globally. Use AdMob.setTestDeviceIDAsync instead.
  </code></pre>
  
  <p>I'd appreciate it if you could help me.</p>