@java.lang.Override
      public com.google.cloud.visionai.v1.AnnotationValue build(
          com.google.cloud.visionai.v1.AnnotationValueOrBuilder val) {
        if (val instanceof com.google.cloud.visionai.v1.AnnotationValue) {
          return (com.google.cloud.visionai.v1.AnnotationValue) val;
        }
        return ((com.google.cloud.visionai.v1.AnnotationValue.Builder) val).build();
      }
<pre>
Customized struct represnation in annotation.
</pre>

Protobuf type {@code google.cloud.visionai.v1.AnnotationCustomizedStruct}
java-visionai/proto-google-cloud-visionai-v1/src/main/java/com/google/cloud/visionai/v1/AnnotationCustomizedStruct.java