def _parse_paren_expression_list(self) -> ASTParenExprList:
    (exprs, trailingComma) = self._parse_initializer_list('parenthesized expression-list', '(', ')')
    if (exprs is None):
        return None
    return ASTParenExprList(exprs)
def _parse_paren_expression_list(self) -> ASTParenExprList:
    (exprs, trailingComma) = self._parse_initializer_list('parenthesized expression-list', '(', ')')
    if (exprs is None):
        return None
    return ASTParenExprList(exprs)