def _parse_expression_list_or_braced_init_list(self) -> Union[(ASTParenExprList, ASTBracedInitList)]:
    paren = self._parse_paren_expression_list()
    if (paren is not None):
        return paren
    return self._parse_braced_init_list()
def _parse_expression_list_or_braced_init_list(self) -> Union[(ASTParenExprList, ASTBracedInitList)]:
    paren = self._parse_paren_expression_list()
    if (paren is not None):
        return paren
    return self._parse_braced_init_list()