protected boolean containsKey(OptionKey<?> key) { return values.containsKey(key); }
@Override protected boolean containsKey(OptionKey<?> key) { return v.get().containsKey(key); }
protected boolean containsKey(OptionKey<?> key) { return values.containsKey(key); }
@Override protected boolean containsKey(OptionKey<?> key) { return v.get().containsKey(key); }