How to get Yahoo user data via API?

Question

Yahoo

Hello!
People who have used the Yahoo API, can you tell me how to get all the user data (email, name, etc.)
Scheme: The user logs in via OAuth and receives a token, everything is as usual.
Next, you need to get information about yourself. There is a request https://developer.yahoo.com/social/rest_api_guide/...
It returns data but not complete, no email and incomplete name, only nickname

I would like to get at least the full name.
There is also something like OpenId, but somehow I didn't understand how to use it...