{"ast_node_type":"other","tokens":[{"end":100,"kind":"keyword","start":0,"text":"//"}]}
        // // macro expansions are usually rather small, so we can afford to keep more of them alive
        // base_db::ParseQuery.in_db_mut(self).set_lru_capacity(lru_capacity);
        // hir::db::ParseMacroExpansionQuery.in_db_mut(self).set_lru_capacity(4 * lru_capacity);