fix(storage): heed custom polling policies

.github/workflows/generator_dart.yaml

@@ -50,7 +50,7 @@ jobs:
       # the inputs should be pinned, including the generator version and the
       # googleapis SHA.
       - name: Regenerate existing clients
-        run: go run github.com/googleapis/librarian/cmd/sidekick@v0.1.2-0.20250807194907-73f799b5acb0 refreshall -project-root dart
+        run: go run github.com/googleapis/librarian/cmd/sidekick@v0.1.2-0.20250812135937-eb593463c88c refreshall -project-root dart
       - run: git diff --exit-code
 
   validate-packages:

.github/workflows/sdk.yaml

@@ -368,7 +368,7 @@ jobs:
           sudo unzip -x /tmp/protoc.zip
           protoc --version
       - name: Regenerate all the code
-        run: go run github.com/googleapis/librarian/cmd/sidekick@v0.1.2-0.20250807194907-73f799b5acb0 refreshall -project-root .
+        run: go run github.com/googleapis/librarian/cmd/sidekick@v0.1.2-0.20250812135937-eb593463c88c refreshall -project-root .
       - run: cargo fmt
         # If there is any difference between the generated code and the
         # committed code that is an error. All the inputs should be pinned,

src/storage/src/generated/gapic_control/transport.rs

@@ -1537,6 +1537,20 @@ impl super::stub::StorageControl for StorageControl {
             .await
             .and_then(gaxi::grpc::to_gax_response::<TR, longrunning::model::Operation>)
     }
+
+    fn get_polling_error_policy(
+        &self,
+        options: &gax::options::RequestOptions,
+    ) -> std::sync::Arc<dyn gax::polling_error_policy::PollingErrorPolicy> {
+        self.inner.get_polling_error_policy(options)
+    }
+
+    fn get_polling_backoff_policy(
+        &self,
+        options: &gax::options::RequestOptions,
+    ) -> std::sync::Arc<dyn gax::polling_backoff_policy::PollingBackoffPolicy> {
+        self.inner.get_polling_backoff_policy(options)
+    }
 }
 
 use gaxi::prost::{ConvertError, FromProto, ToProto};