public com.google.protobuf.Duration.Builder getTimeOffsetBuilder() {
      bitField0_ |= 0x00000001;
      onChanged();
      return getTimeOffsetFieldBuilder().getBuilder();
    }
<pre>
Time-offset, relative to the beginning of the video, corresponding to the
video frame for this location.
</pre>

<code>.google.protobuf.Duration time_offset = 1;</code>
java-video-intelligence/proto-google-cloud-video-intelligence-v1/src/main/java/com/google/cloud/videointelligence/v1/ExplicitContentFrame.java