How do I create a VectorStoreClient?

[purplesoup]

I was watching this video ".NET Conf: Focus on AI 6 - OpenAI and Azure OpenAI: A .NET Convergence Story"
https://www.youtube.com/watch?v=B54NPr2WQuI&list=PLdo4fOcmZ0oX7Yg1cixIj6hXjz9C5MHJR&index=6

It uses the OpenAI 2.0.0-beta 8 and the example they show for creating a VectorStoreClient is pretty simple:

var v = new VectorStoreClient();

This doesn't work with the latest version which at the time of writing is 2.1.0-beta.1.

Where do I find out how to create these now?