//Rewarded Video
IronSource.init(this, appKey, IronSource.AD_UNIT.REWARDED_VIDEO);
//Init Interstitial
IronSource.init(this, appKey, IronSource.AD_UNIT.INTERSTITIAL);
//Init Offerwall
IronSource.init(this, appKey, IronSource.AD_UNIT.OFFERWALL)
//Init Banner
IronSource.init(this, appKey, IronSource.AD_UNIT.BANNER);
/**
*Ad Units should be in the type of IronSource.Ad_Unit.AdUnitName, example
*/
IronSource.init(this, appKey, IronSource.AD_UNIT.OFFERWALL, IronSource.AD_UNIT.INTERSTITIAL, IronSource.AD_UNIT.REWARDED_VIDEO, IronSource.AD_UNIT.BANNER);
https://github.com/defold/extension-ironsource/blob/d93a3fc3e503860eb61fa6c6f69b8ed417be8068/extension-ironsource/src/java/com/defold/ironsource/IronSourceJNI.java#L67
https://developers.is.com/ironsource-mobile/android/android-sdk/#step-5