private com.google.protobuf.SingleFieldBuilderV3<
            com.google.cloud.video.transcoder.v1.PubsubDestination,
            com.google.cloud.video.transcoder.v1.PubsubDestination.Builder,
            com.google.cloud.video.transcoder.v1.PubsubDestinationOrBuilder>
        getPubsubDestinationFieldBuilder() {
      if (pubsubDestinationBuilder_ == null) {
        pubsubDestinationBuilder_ =
            new com.google.protobuf.SingleFieldBuilderV3<
                com.google.cloud.video.transcoder.v1.PubsubDestination,
                com.google.cloud.video.transcoder.v1.PubsubDestination.Builder,
                com.google.cloud.video.transcoder.v1.PubsubDestinationOrBuilder>(
                getPubsubDestination(), getParentForChildren(), isClean());
        pubsubDestination_ = null;
      }
      return pubsubDestinationBuilder_;
    }
<pre>
Destination on Pub/Sub.
</pre>

<code>.google.cloud.video.transcoder.v1.PubsubDestination pubsub_destination = 8;</code>
java-video-transcoder/proto-google-cloud-video-transcoder-v1/src/main/java/com/google/cloud/video/transcoder/v1/JobConfig.java