{"ast_node_type":"variable","tokens":[{"end":66,"kind":"keyword","start":0,"text":"let"}]}
        let path = self.parse_path(PathStyle::Mod)?; // `foo::bar`
    fn parse_item_macro(&mut self, vis: &Visibility) -> PResult<'a, MacCall> {
        self.expect(exp!(Bang))?; // `!`