package com.kickstarter.libs.rx.transformers; import android.support.annotation.NonNull; import rx.Notification; import rx.Observable; public final class CompletedTransformer<T> implements Observable.Transformer<Notification<T>, Void> { @Override public @NonNull Observable<Void> call(final @NonNull Observable<Notification<T>> source) { return source .filter(Notification::isOnCompleted) .map(__ -> null); } }