syntax_data: {"ast_node_type":"other","tokens":[{"end":68,"kind":"keyword","start":0,"text":"debug!(\"temporary_scope({expr_id:?})"}]}
source_snippet:             debug!("temporary_scope({expr_id:?}) = {s:?} [custom]");
context_before:         if let Some(&s) = self.map.get(&expr_id) {
context_after:             return (s, None);