{"ast_node_type":"function","tokens":[{"end":87,"kind":"keyword","start":0,"text":"fn"}]}
fn ast_id_map(db: &dyn ExpandDatabase, file_id: HirFileId) -> triomphe::Arc<AstIdMap> {
    triomphe::Arc::new(AstIdMap::from_source(&db.parse_or_expand(file_id)))