public Builder clearValue() {
      bitField0_ = (bitField0_ & ~0x00000002);
      value_ = null;
      if (valueBuilder_ != null) {
        valueBuilder_.dispose();
        valueBuilder_ = null;
      }
      onChanged();
      return this;
    }
<pre>
Value of the annotation. The value must be able to convert
to the type according to the data schema.
</pre>

<code>.google.cloud.visionai.v1.AnnotationValue value = 2;</code>
java-visionai/proto-google-cloud-visionai-v1/src/main/java/com/google/cloud/visionai/v1/UserSpecifiedAnnotation.java