public Builder setInterval(com.google.protobuf.Duration value) {
      if (intervalBuilder_ == null) {
        if (value == null) {
          throw new NullPointerException();
        }
        interval_ = value;
      } else {
        intervalBuilder_.setMessage(value);
      }
      bitField0_ |= 0x00000040;
      onChanged();
      return this;
    }
<pre>
Create sprites at regular intervals. Valid range is [1 second, 1 hour] and
the default value is `10s`.
</pre>

<code>.google.protobuf.Duration interval = 7;</code>
java-video-live-stream/proto-google-cloud-live-stream-v1/src/main/java/com/google/cloud/video/livestream/v1/SpriteSheet.java