public Builder mergePrefetchConfig(com.google.cloud.video.stitcher.v1.PrefetchConfig value) {
      if (prefetchConfigBuilder_ == null) {
        if (((bitField0_ & 0x00000100) != 0)
            && prefetchConfig_ != null
            && prefetchConfig_
                != com.google.cloud.video.stitcher.v1.PrefetchConfig.getDefaultInstance()) {
          getPrefetchConfigBuilder().mergeFrom(value);
        } else {
          prefetchConfig_ = value;
        }
      } else {
        prefetchConfigBuilder_.mergeFrom(value);
      }
      if (prefetchConfig_ != null) {
        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