{"ast_node_type":"other","tokens":[{"end":76,"kind":"keyword","start":0,"text":"//"}]}
        // Presumably, the majority of the time there will only be one attr.
    pub(crate) fn parse_meta_seq_top(&mut self) -> PResult<'a, ThinVec<ast::MetaItemInner>> {
        let mut nmis = ThinVec::with_capacity(1);