@Override
  public PyStringLiteralExpression createStringLiteral(@NotNull StringLiteralExpression oldElement, @NotNull String unescaped) {
    Pair<String, String> quotes = PyStringLiteralCoreUtil.getQuotes(oldElement.getText());
    if (quotes != null) {
      return createStringLiteralAlreadyEscaped(quotes.first + unescaped + quotes.second);
    }
    else {
      return createStringLiteralFromString(unescaped);
    }
  }
@Override
  public PyStringLiteralExpression createStringLiteral(@NotNull StringLiteralExpression oldElement, @NotNull String unescaped)