private com.google.protobuf.SingleFieldBuilderV3<
            com.google.cloud.video.stitcher.v1.Interstitials,
            com.google.cloud.video.stitcher.v1.Interstitials.Builder,
            com.google.cloud.video.stitcher.v1.InterstitialsOrBuilder>
        getInterstitialsFieldBuilder() {
      if (interstitialsBuilder_ == null) {
        interstitialsBuilder_ =
            new com.google.protobuf.SingleFieldBuilderV3<
                com.google.cloud.video.stitcher.v1.Interstitials,
                com.google.cloud.video.stitcher.v1.Interstitials.Builder,
                com.google.cloud.video.stitcher.v1.InterstitialsOrBuilder>(
                getInterstitials(), getParentForChildren(), isClean());
        interstitials_ = null;
      }
      return interstitialsBuilder_;
    }
<pre>
Output only. Metadata of what was stitched into the content.
</pre>

<code>
.google.cloud.video.stitcher.v1.Interstitials interstitials = 2 [(.google.api.field_behavior) = OUTPUT_ONLY];
</code>
java-video-stitcher/proto-google-cloud-video-stitcher-v1/src/main/java/com/google/cloud/video/stitcher/v1/VodSession.java