String (@Nullable PyExpression defaultValue) { if (defaultValue instanceof PyStringLiteralExpression) { final Pair<String, String> quotes = PyStringLiteralCoreUtil.getQuotes(defaultValue.getText()); if (quotes != null) { return quotes.getFirst() + ((PyStringLiteralExpression)defaultValue).getStringValue() + quotes.getSecond(); } } return defaultValue == null ? null : defaultValue.getText(); }