Get tier group
Returns tier group information.
The API key should be passed in the request headers as api-key for authentication.
Select real_time to downgrade tier on real time balance updates. Select membership_anniversary to downgrade tier on subscription anniversary. Select tier_anniversary to downgrade tier on tier anniversary.
Select real_time to upgrade tier on real time balance updates. Select membership_anniversary to upgrade tier on subscription anniversary. Select tier_anniversary to upgrade tier on tier anniversary.