github.com/gotd/td/tg.HelpPremiumPromo.GetPeriodOptions (method, view implemented interface methods)

one use

	github.com/gotd/td/tg (current package)
		tl_help_premium_promo_gen.go#L379: func (p *HelpPremiumPromo) GetPeriodOptions() (value []PremiumSubscriptionOption) {