Has anyone created a chatbot using Pytest and TensorFlow

Hi,
We are currently working on a new chatbot development project and the client wants us to focus on Tensor Flow and Pytest. They want to integrate deep learning and sentiment analysis into their bot. They are actually a chatbot development services company that wants to merge their projects with other development companies. So this is like a test. Therefore, before starting we needed some more idea on Pytest and TensorFlow.
Every help is welcome!