-keep public class com.smaato.sdk.** {
    public protected <fields>;
    public protected <methods>;
}

-keep public interface com.smaato.sdk.** {
     public protected <fields>;
     public protected <methods>;
}

-dontwarn com.google.auto.value.**

-keep public class com.google.android.gms.ads.identifier.AdvertisingIdClient { *; }
-keep public class com.google.android.gms.ads.identifier.AdvertisingIdClient$Info { *; }