public Builder setPrefetchConfig(com.google.cloud.video.stitcher.v1.PrefetchConfig value) {
      if (prefetchConfigBuilder_ == null) {
        if (value == null) {
          throw new NullPointerException();
        }
        prefetchConfig_ = value;
      } else {
        prefetchConfigBuilder_.setMessage(value);
      }
      bitField0_ |= 0x00000100;
      onChanged();
      return this;
    }
<pre>
The configuration for prefetching ads.
</pre>

<code>.google.cloud.video.stitcher.v1.PrefetchConfig prefetch_config = 10;</code>
java-video-stitcher/proto-google-cloud-video-stitcher-v1/src/main/java/com/google/cloud/video/stitcher/v1/LiveConfig.java