How to use OKSDK.REST.call()?

Question

Classmates

Hello, I'm learning API OK, tell me how to get a list of user groups? I do this:
OKSDK.REST.call("group.getUserGroupsV2", {uid:"121345454"}, function(status, data, error) {});
but returns an error:
{"error_code":100,"error_msg":"PARAM : Only one of session_key or uid must be specified","error_data":null}

Answer 1

There is also an anchor - that is, a mark of the current page and count - how much to request.
Implementing a paging request based on this is easy.

Answer 2

Without parameters, group.getUserGroupsV2 returns only 10 groups, if you specify it hard through the count parameter, it will return more, but display all?

Answer 3

The answer to the question lies here