GroupServiceMethodsGetter is the interface that wraps the GetGroupServiceMethods method.

UserGroupsGetter is the interface that wraps the GetUserGroups method.

UserInfo is the interface that wraps multiple methods which yield information about a user.

UserServiceMethodsGetter is the interface that wraps the GetUserServiceMethods method.

UsersInGroupGetter is the interface that wraps the GetUsersInGroup method.