public Builder mergeEndTimeOffset(com.google.protobuf.Duration value) {
      if (endTimeOffsetBuilder_ == null) {
        if (((bitField0_ & 0x00000002) != 0)
            && endTimeOffset_ != null
            && endTimeOffset_ != com.google.protobuf.Duration.getDefaultInstance()) {
          getEndTimeOffsetBuilder().mergeFrom(value);
        } else {
          endTimeOffset_ = value;
        }
      } else {
        endTimeOffsetBuilder_.mergeFrom(value);
      }
      if (endTimeOffset_ != null) {
        bitField0_ |= 0x00000002;
        onChanged();
      }
      return this;
    }
<pre>
Time-offset, relative to the beginning of the video,
corresponding to the end of the segment (inclusive).
</pre>

<code>.google.protobuf.Duration end_time_offset = 2;</code>
java-video-intelligence/proto-google-cloud-video-intelligence-v1p3beta1/src/main/java/com/google/cloud/videointelligence/v1p3beta1/VideoSegment.java