androidx.concurrent.futures.CallbackToFutureAdapter$Resolver -> nf0:
# {"id":"sourceFile","fileName":"CallbackToFutureAdapter.java"}
    java.lang.Object attachCompleter(androidx.concurrent.futures.CallbackToFutureAdapter$Completer) -> h
      # {"id":"com.android.tools.r8.residualsignature","signature":"(Lmf0;)Ljava/lang/Object;"}
