private com.google.protobuf.SingleFieldBuilderV3<
            com.google.cloud.videointelligence.v1p3beta1.PersonDetectionConfig,
            com.google.cloud.videointelligence.v1p3beta1.PersonDetectionConfig.Builder,
            com.google.cloud.videointelligence.v1p3beta1.PersonDetectionConfigOrBuilder>
        getPersonDetectionConfigFieldBuilder() {
      if (personDetectionConfigBuilder_ == null) {
        personDetectionConfigBuilder_ =
            new com.google.protobuf.SingleFieldBuilderV3<
                com.google.cloud.videointelligence.v1p3beta1.PersonDetectionConfig,
                com.google.cloud.videointelligence.v1p3beta1.PersonDetectionConfig.Builder,
                com.google.cloud.videointelligence.v1p3beta1.PersonDetectionConfigOrBuilder>(
                getPersonDetectionConfig(), getParentForChildren(), isClean());
        personDetectionConfig_ = null;
      }
      return personDetectionConfigBuilder_;
    }
<pre>
Config for PERSON_DETECTION.
</pre>

<code>
.google.cloud.videointelligence.v1p3beta1.PersonDetectionConfig person_detection_config = 11;
</code>
java-video-intelligence/proto-google-cloud-video-intelligence-v1p3beta1/src/main/java/com/google/cloud/videointelligence/v1p3beta1/VideoContext.java