Activate or deactivate a purchased fragment.com username associated to a supergroup or channel we own.
boolFalse#bc799737 = Bool;
boolTrue#997275b5 = Bool;
channels.toggleUsername#50f24105 channel:InputChannel username:string active:Bool = Bool;
||The maximum number of active usernames was reached.
||The provided username is not valid.
Bots can use this method
How to handle channels, supergroups, gigagroups, basic groups, and what's the difference between them.