How to use Depth API

In release note of 4.26, it says that Depth API is included. But I cannot find any tutorial or document to use it.
Can you share me how to get the Depth Map or how to use it?
Thanks.

Did you ever find a solution?

1.Use SceneDepth or PixelDepth node on material.
2.Use Scene Capture and choose “SceneDepth in R” in Capture Source.