@kotlin.Metadata
public class AbstractStuff {
    public method <init>(): void
    private final method hello(p0: java.lang.Object, p1: kotlin.coroutines.experimental.Continuation): java.lang.Object
}

@kotlin.Metadata
public final class Stuff {
    public method <init>(): void
    public final @org.jetbrains.annotations.Nullable method foo(@org.jetbrains.annotations.NotNull p0: kotlin.coroutines.experimental.Continuation): java.lang.Object
}