@java.lang.Override
      public final Builder mergeUnknownFields(
          final com.google.protobuf.UnknownFieldSet unknownFields) {
        return super.mergeUnknownFields(unknownFields);
      }
<pre>
The time to end overlay object, in seconds. Default: 0
</pre>

<code>.google.protobuf.Duration start_time_offset = 1;</code>
java-video-transcoder/proto-google-cloud-video-transcoder-v1/src/main/java/com/google/cloud/video/transcoder/v1/Overlay.java