{"ast_node_type":"variable","tokens":[{"end":77,"kind":"keyword","start":0,"text":"let"}]}
    let _p = tracing::info_span!("file_item_tree_query", ?file_id).entered();
pub(crate) fn file_item_tree_query(db: &dyn DefDatabase, file_id: HirFileId) -> Arc<ItemTree> {
    static EMPTY: OnceLock<Arc<ItemTree>> = OnceLock::new();