{"ast_node_type":"import","tokens":[{"end":98,"kind":"keyword","start":0,"text":"//"}]}
        // This check needs to happen here because the never type can be returned from a function,
    fn visit_generic_args(&mut self, args: &'a ast::GenericArgs) {
        // but cannot be used in any other context. If this check was in `visit_fn_ret_ty`, it