batch: document intermediate type

mdekstrand · mdekstrand · commit 54777f7a5e5d · 2026-04-15T20:46:13.000-04:00
diff --git a/src/lenskit/batch/_results.py b/src/lenskit/batch/_results.py
@@ -11,6 +11,9 @@
 from lenskit.data import GenericKey, ItemListCollection
 
 type BatchResultRow = tuple[GenericKey, dict[str, object]]
+"""
+Results for a single query in the batch recommendations.
+"""
 
 
 class BatchResults:
