MessageListUser
constructor(id: UserId, name: String?, accentId: Int, previewAvatar: QualifiedID?, availability: UserAvailabilityStatus, userType: UserTypeInfo, connectionState: ConnectionState, isSelf: Boolean, isDeleted: Boolean, isUnavailable: Boolean, isDefederated: Boolean, isUnderLegalHold: Boolean, guestExpiresAt: Instant?, botService: BotService?, isMissing: Boolean)