Пространство имен Bitrix\Sale\Services\Base

Классы
class	ConcreteProductRestriction
class	ProductCategoryRestriction
class	RestClient
interface	RestrictableService
class	Restriction
class	RestrictionInfo
class	RestrictionInfoCollection
class	RestrictionManager
class	SiteRestriction
class	TradeBindingRestriction
class	UserGroupRestriction