@Override
  public void deleteChildInternal(@NotNull ASTNode child) {
    final PsiElement childPsi = child.getPsi();
    if (childPsi instanceof PyDecorator && getDecorators().length == 1) {
      delete();
      return;
    }
    super.deleteChildInternal(child);
  }
@Override
  public void deleteChildInternal(@NotNull ASTNode child)