public Builder clearInterval() {
      if (intervalBuilder_ == null) {
        if (extractionStrategyCase_ == 10) {
          extractionStrategyCase_ = 0;
          extractionStrategy_ = null;
          onChanged();
        }
      } else {
        if (extractionStrategyCase_ == 10) {
          extractionStrategyCase_ = 0;
          extractionStrategy_ = null;
        }
        intervalBuilder_.clear();
      }
      return this;
    }
<pre>
Starting from `0s`, create sprites at regular intervals. Specify the
interval value in seconds.
</pre>

<code>.google.protobuf.Duration interval = 10;</code>
java-video-transcoder/proto-google-cloud-video-transcoder-v1/src/main/java/com/google/cloud/video/transcoder/v1/SpriteSheet.java