m-trieu commented on code in PR #31784:
URL: https://github.com/apache/beam/pull/31784#discussion_r1696153550


##########
runners/google-cloud-dataflow-java/worker/src/main/java/org/apache/beam/runners/dataflow/worker/windmill/client/getdata/StreamPoolGetDataClient.java:
##########
@@ -18,33 +18,29 @@
 package org.apache.beam.runners.dataflow.worker.windmill.client.getdata;
 
 import java.io.PrintWriter;
-import java.util.Map;
 import javax.annotation.concurrent.ThreadSafe;
 import org.apache.beam.runners.dataflow.worker.windmill.Windmill;
 import 
org.apache.beam.runners.dataflow.worker.windmill.Windmill.GlobalDataRequest;
 import 
org.apache.beam.runners.dataflow.worker.windmill.Windmill.KeyedGetDataRequest;
 import org.apache.beam.runners.dataflow.worker.windmill.client.CloseableStream;
 import 
org.apache.beam.runners.dataflow.worker.windmill.client.WindmillStream.GetDataStream;
 import 
org.apache.beam.runners.dataflow.worker.windmill.client.WindmillStreamPool;
-import 
org.apache.beam.runners.dataflow.worker.windmill.work.refresh.HeartbeatSender;
-import 
org.apache.beam.runners.dataflow.worker.windmill.work.refresh.Heartbeats;
 import org.apache.beam.sdk.annotations.Internal;
-import 
org.apache.beam.vendor.guava.v32_1_2_jre.com.google.common.collect.Iterables;
 
 /**
  * StreamingEngine implementation of {@link GetDataClient}.
  *
- * @implNote Uses {@link WindmillStreamPool} to send/receive requests. 
Depending on options, may use
- *     a dedicated stream pool for heartbeats.
+ * @implNote Uses {@link WindmillStreamPool} to send requests. Depending on 
options, may use a
+ *     dedicated stream pool for heartbeats.

Review Comment:
   done



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