public java.util.List<
            ? extends com.google.cloud.videointelligence.v1.DetectedAttributeOrBuilder>
        getAttributesOrBuilderList() {
      if (attributesBuilder_ != null) {
        return attributesBuilder_.getMessageOrBuilderList();
      } else {
        return java.util.Collections.unmodifiableList(attributes_);
      }
    }
<pre>
Optional. Attributes in the track level.
</pre>

<code>
repeated .google.cloud.videointelligence.v1.DetectedAttribute attributes = 3 [(.google.api.field_behavior) = OPTIONAL];
</code>
java-video-intelligence/proto-google-cloud-video-intelligence-v1/src/main/java/com/google/cloud/videointelligence/v1/Track.java