set Chat Administrator Custom Title
suspend fun TelegramBot.setChatAdministratorCustomTitle(chatId: ChatId, userId: UserId, customTitle: String): Boolean
suspend fun TelegramBot.setChatAdministratorCustomTitle(chat: PublicChat, userId: UserId, customTitle: String): Boolean
suspend fun TelegramBot.setChatAdministratorCustomTitle(chatId: ChatId, user: User, customTitle: String): Boolean
suspend fun TelegramBot.setChatAdministratorCustomTitle(chat: PublicChat, user: User, customTitle: String): Boolean