Unique identifier of business connection on behalf of which to send the request; for bots only.
Optional
keep_Pass true to keep the original gift text, sender and receiver in the upgraded gift.
Identifier of the gift.
The amount of Telegram Stars required to pay for the upgrade. It the gift has prepaid_upgrade_star_count > 0, then pass 0, otherwise, pass gift.upgrade_star_count.
Upgrades a regular gift. Request type for Tdjson#upgradeGift.