{"ast_node_type":"other","tokens":[{"end":68,"kind":"keyword","start":0,"text":"source_change.extend(usages.iter().map(|(file_id,"}]}
    source_change.extend(usages.iter().map(|(file_id, references)| {
    let mut source_change = SourceChange::default();
        let edition = file_id.edition(sema.db);