public Builder mergeBoundingBox(
          com.google.cloud.visionai.v1.VideoObjectTrackingPredictionResult.BoundingBox value) {
        if (boundingBoxBuilder_ == null) {
          if (((bitField0_ & 0x00000004) != 0)
              && boundingBox_ != null
              && boundingBox_
                  != com.google.cloud.visionai.v1.VideoObjectTrackingPredictionResult.BoundingBox
                      .getDefaultInstance()) {
            getBoundingBoxBuilder().mergeFrom(value);
          } else {
            boundingBox_ = value;
          }
        } else {
          boundingBoxBuilder_.mergeFrom(value);
        }
        if (boundingBox_ != null) {
          bitField0_ |= 0x00000004;
          onChanged();
        }
        return this;
      }
<pre>
Boundingbox.
</pre>

<code>
.google.cloud.visionai.v1.VideoObjectTrackingPredictionResult.BoundingBox bounding_box = 3;
</code>
java-visionai/proto-google-cloud-visionai-v1/src/main/java/com/google/cloud/visionai/v1/VideoObjectTrackingPredictionResult.java