{"ast_node_type":"other","tokens":[{"end":94,"kind":"keyword","start":0,"text":"patch(&mut"}]}
        patch(&mut text, "db.struct_signature(self.id)", "();\ndb.struct_signature(self.id)");
        let mut text = host.analysis().file_text(file_id).unwrap().to_string();
        let mut change = ChangeWithProcMacros::default();