Five9 and programmatic access to Dialogflow CX

Question

I did some research on Five9 and integrating with a 3rd party NLU engine. I see mention of and documentation for integrating with Dialogflow ES (referred to as just Dialogflow in the Five9 documentation), is there support and code examples of integrating Five9 with Dialogflow CX?

For example:

Studio Chatbot Client Development Guide

Create an Open Form Type using Google Dialogflow