public com.google.cloud.visionai.v1.PacketType.TypeDescriptorOrBuilder
        getTypeDescriptorOrBuilder() {
      if (typeDescriptorBuilder_ != null) {
        return typeDescriptorBuilder_.getMessageOrBuilder();
      } else {
        return typeDescriptor_ == null
            ? com.google.cloud.visionai.v1.PacketType.TypeDescriptor.getDefaultInstance()
            : typeDescriptor_;
      }
    }
<pre>
The type descriptor.
</pre>

<code>.google.cloud.visionai.v1.PacketType.TypeDescriptor type_descriptor = 2;</code>
java-visionai/proto-google-cloud-visionai-v1/src/main/java/com/google/cloud/visionai/v1/PacketType.java