title: Cannot resolve method isDeveloperModeEnabled in FirebaseRemoteConfigSettings after upgrade API 31
body: <p>When upgrading to API 31, Android Studio reports a problem <code>Cannot resolve method isDeveloperModeEnabled in FirebaseRemoteConfigSettings</code>, can anyone help me, thanks!</p>
  <pre><code>    //Setting Developer Mode enabled to fast retrieve the values
      mFirebaseRemoteConfig.setConfigSettingsAsync(
              new FirebaseRemoteConfigSettings.Builder().build());
  
      long cacheExpiration = 60;
      if (mFirebaseRemoteConfig.getInfo().getConfigSettings().isDeveloperModeEnabled()) {
          cacheExpiration = 0;
      }
  </code></pre>