@java.lang.Override
  public Builder newBuilderForType() {
    return newBuilder();
  }
<pre>
The source disks replication rate for the last 30 minutes in bytes per
second.
</pre>

<code>int64 last_thirty_minutes_average_bytes_per_second = 4;</code>

@return The lastThirtyMinutesAverageBytesPerSecond.
java-vmmigration/proto-google-cloud-vmmigration-v1/src/main/java/com/google/cloud/vmmigration/v1/ReplicatingStep.java