@Override
  public Object @NotNull [] getVariants() {
    FileReferenceCompletion completion = FileReferenceCompletion.getInstance();
    if (completion != null) {
      return completion.getFileReferenceCompletionVariants(this);
    }
    return ArrayUtilRt.EMPTY_OBJECT_ARRAY;
  }
@Override
  public Object @NotNull [] getVariants()