@SuppressWarnings({"rawtypes"})
  @java.lang.Override
  protected com.google.protobuf.MapFieldReflectionAccessor internalGetMapFieldReflection(
      int number) {
    switch (number) {
      case 4:
        return internalGetLabels();
      default:
        throw new RuntimeException("Invalid map field number: " + number);
    }
  }
<pre>
DvrSession is a sub-resource under channel. Each DvrSession represents a DVR
recording of the live stream for a specific time range.
</pre>

Protobuf type {@code google.cloud.video.livestream.v1.DvrSession}
java-video-live-stream/proto-google-cloud-live-stream-v1/src/main/java/com/google/cloud/video/livestream/v1/DvrSession.java