private com.google.protobuf.SingleFieldBuilderV3<
            com.google.cloud.videointelligence.v1beta2.ExplicitContentAnnotation,
            com.google.cloud.videointelligence.v1beta2.ExplicitContentAnnotation.Builder,
            com.google.cloud.videointelligence.v1beta2.ExplicitContentAnnotationOrBuilder>
        getExplicitAnnotationFieldBuilder() {
      if (explicitAnnotationBuilder_ == null) {
        explicitAnnotationBuilder_ =
            new com.google.protobuf.SingleFieldBuilderV3<
                com.google.cloud.videointelligence.v1beta2.ExplicitContentAnnotation,
                com.google.cloud.videointelligence.v1beta2.ExplicitContentAnnotation.Builder,
                com.google.cloud.videointelligence.v1beta2.ExplicitContentAnnotationOrBuilder>(
                getExplicitAnnotation(), getParentForChildren(), isClean());
        explicitAnnotation_ = null;
      }
      return explicitAnnotationBuilder_;
    }
<pre>
Explicit content annotation.
</pre>

<code>
.google.cloud.videointelligence.v1beta2.ExplicitContentAnnotation explicit_annotation = 7;
</code>
java-video-intelligence/proto-google-cloud-video-intelligence-v1beta2/src/main/java/com/google/cloud/videointelligence/v1beta2/VideoAnnotationResults.java