public Builder mergeFrom(com.google.cloud.videointelligence.v1p3beta1.TimestampedObject other) {
      if (other
          == com.google.cloud.videointelligence.v1p3beta1.TimestampedObject.getDefaultInstance())
        return this;
      if (other.hasNormalizedBoundingBox()) {
        mergeNormalizedBoundingBox(other.getNormalizedBoundingBox());
      }
      if (other.hasTimeOffset()) {
        mergeTimeOffset(other.getTimeOffset());
      }
      if (attributesBuilder_ == null) {
        if (!other.attributes_.isEmpty()) {
          if (attributes_.isEmpty()) {
            attributes_ = other.attributes_;
            bitField0_ = (bitField0_ & ~0x00000004);
          } else {
            ensureAttributesIsMutable();
            attributes_.addAll(other.attributes_);
          }
          onChanged();
        }
      } else {
        if (!other.attributes_.isEmpty()) {
          if (attributesBuilder_.isEmpty()) {
            attributesBuilder_.dispose();
            attributesBuilder_ = null;
            attributes_ = other.attributes_;
            bitField0_ = (bitField0_ & ~0x00000004);
            attributesBuilder_ =
                com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders
                    ? getAttributesFieldBuilder()
                    : null;
          } else {
            attributesBuilder_.addAllMessages(other.attributes_);
          }
        }
      }
      if (landmarksBuilder_ == null) {
        if (!other.landmarks_.isEmpty()) {
          if (landmarks_.isEmpty()) {
            landmarks_ = other.landmarks_;
            bitField0_ = (bitField0_ & ~0x00000008);
          } else {
            ensureLandmarksIsMutable();
            landmarks_.addAll(other.landmarks_);
          }
          onChanged();
        }
      } else {
        if (!other.landmarks_.isEmpty()) {
          if (landmarksBuilder_.isEmpty()) {
            landmarksBuilder_.dispose();
            landmarksBuilder_ = null;
            landmarks_ = other.landmarks_;
            bitField0_ = (bitField0_ & ~0x00000008);
            landmarksBuilder_ =
                com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders
                    ? getLandmarksFieldBuilder()
                    : null;
          } else {
            landmarksBuilder_.addAllMessages(other.landmarks_);
          }
        }
      }
      this.mergeUnknownFields(other.getUnknownFields());
      onChanged();
      return this;
    }
<pre>
For tracking related features.
An object at time_offset with attributes, and located with
normalized_bounding_box.
</pre>

Protobuf type {@code google.cloud.videointelligence.v1p3beta1.TimestampedObject}
java-video-intelligence/proto-google-cloud-video-intelligence-v1p3beta1/src/main/java/com/google/cloud/videointelligence/v1p3beta1/TimestampedObject.java