@java.lang.Override
    public Builder clone() {
      return super.clone();
    }
<pre>
Explicit content annotation (based on per-frame visual signals only).
If no explicit content has been detected in a frame, no annotations are
present for that frame.
</pre>

Protobuf type {@code google.cloud.videointelligence.v1.ExplicitContentAnnotation}
java-video-intelligence/proto-google-cloud-video-intelligence-v1/src/main/java/com/google/cloud/videointelligence/v1/ExplicitContentAnnotation.java