public com.google.protobuf.DurationOrBuilder getAdTimeOffsetOrBuilder() {
      if (adTimeOffsetBuilder_ != null) {
        return adTimeOffsetBuilder_.getMessageOrBuilder();
      } else {
        return adTimeOffset_ == null
            ? com.google.protobuf.Duration.getDefaultInstance()
            : adTimeOffset_;
      }
    }
<pre>
Required. The time offset of the processed ad.
</pre>

<code>.google.protobuf.Duration ad_time_offset = 3 [(.google.api.field_behavior) = REQUIRED];
</code>
java-video-stitcher/proto-google-cloud-video-stitcher-v1/src/main/java/com/google/cloud/video/stitcher/v1/AdStitchDetail.java