@Nullable
  public PsiClass findClass(String fqn, GdslMembersHolderConsumer consumer) {
    final JavaPsiFacade facade = JavaPsiFacade.getInstance(consumer.getProject());
    return facade.findClass(fqn, GlobalSearchScope.allScope(consumer.getProject()));
  }
@Nullable
  public PsiClass findClass(String fqn, GdslMembersHolderConsumer consumer)