-keep public class com.yandex.mobile.ads.mediation.banner.ChartboostBannerAdapter {
    !private <methods>;
}

-keep public class com.yandex.mobile.ads.mediation.interstitial.ChartboostInterstitialAdapter {
    !private <methods>;
}

-keep public class com.yandex.mobile.ads.mediation.rewarded.ChartboostRewardedAdapter {
    !private <methods>;
}
