Update comment in ActionInputPrefetcher.
@@ -30,6 +30,9 @@ public interface ActionInputPrefetcher {
* Initiates best-effort prefetching of all given inputs. This should not block.
*
* <p>For any path not under this prefetcher's control, the call should be a no-op.
+ *
+ * <p>TODO(b/215316609): Implementation in remote module blocks until download completes. Change
+ * this method to return a Future.
*/
void prefetchFiles(Iterable<? extends ActionInput> inputs, MetadataProvider metadataProvider)
throws IOException, InterruptedException;
