{"ast_node_type":"other","tokens":[{"end":34,"kind":"keyword","start":0,"text":"Ok(if"}]}
        Ok(if self.eat(exp!(Eq)) {
    pub(crate) fn parse_meta_item_kind(&mut self) -> PResult<'a, ast::MetaItemKind> {
            ast::MetaItemKind::NameValue(self.parse_unsuffixed_meta_item_lit()?)