The user must buy Telegram Premium as an in-store purchase to log in. Call checkAuthenticationPremiumPurchase and then setAuthenticationPremiumPurchaseTransaction. Subtype of AuthorizationState.
Identifier of the store product that must be bought.
Email address to use for support if the user has issues with Telegram Premium purchase.
Subject for the email sent to the support email address.
The user must buy Telegram Premium as an in-store purchase to log in. Call checkAuthenticationPremiumPurchase and then setAuthenticationPremiumPurchaseTransaction. Subtype of AuthorizationState.