{"ast_node_type":"other","tokens":[{"end":67,"kind":"keyword","start":0,"text":"!db.source_root(root_id).source_root(db).is_library"}]}
                !db.source_root(root_id).source_root(db).is_library
                let root_id = db.file_source_root(crate_data.root_file_id).source_root_id(db);
            }