Пространство имен Bitrix\Main\Engine

Пространства имен
namespace	ActionFilter
namespace	AutoWire
namespace	Component
namespace	Contract
namespace	Response

Классы
class	Action
class	Binder
class	ClosureAction
class	Configurator
class	Controller
class	ControllerBuilder
class	Crawler
class	CurrentUser
class	DefaultController
class	FallbackAction
class	InlineAction
class	JsonController
class	JsonPayload
class	Resolver
class	Router
class	UrlManager