Пространство имен Bitrix\Im\V2\Controller\Filter

Классы
class	ActionUuidHandler
class	AuthorizationPrefilter
class	ChatTypeFilter
class	CheckAvatarId
class	CheckAvatarIdInFields
class	CheckChatAccess
class	CheckChatAddParams
class	CheckChatCanPost
class	CheckChatManageUpdate
class	CheckChatOwner
class	CheckChatUpdate
class	CheckDisappearingDuration
class	CheckMessageDisappearingDuration
class	CheckMessageSend
class	ExtendPullWatchPrefilter
class	SameChatMessageFilter
class	SettingsCheckAccess
class	StartIdFilter
class	UpdateStatus