Internal

Grain Team · copybara-github · commit 12a4a38bbe10 · 2025-12-17T13:45:08.000-08:00
PiperOrigin-RevId: 845858794
diff --git a/grain/_src/python/data_sources.py b/grain/_src/python/data_sources.py
@@ -21,6 +21,7 @@
 pipelines.
 """
 
+import abc
 import collections
 from collections.abc import Sequence
 import inspect
