OutboundWebSocketMessage:
    | {
        MessageType: "ActivityLogEntry";
    } & ActivityLogEntryMessage
    | {
        MessageType: "ForceKeepAlive";
    } & ForceKeepAliveMessage
    | {
        MessageType: "GeneralCommand";
    } & GeneralCommandMessage
    | {
        MessageType: "KeepAlive";
    } & OutboundKeepAliveMessage
    | {
        MessageType: "LibraryChanged";
    } & LibraryChangedMessage
    | {
        MessageType: "PackageInstallationCancelled";
    } & PluginInstallationCancelledMessage
    | {
        MessageType: "PackageInstallationCompleted";
    } & PluginInstallationCompletedMessage
    | {
        MessageType: "PackageInstallationFailed";
    } & PluginInstallationFailedMessage
    | {
        MessageType: "PackageInstalling";
    } & PluginInstallingMessage
    | {
        MessageType: "PackageUninstalled";
    } & PluginUninstalledMessage
    | {
        MessageType: "Play";
    } & PlayMessage
    | {
        MessageType: "Playstate";
    } & PlaystateMessage
    | {
        MessageType: "RefreshProgress";
    } & RefreshProgressMessage
    | {
        MessageType: "RestartRequired";
    } & RestartRequiredMessage
    | {
        MessageType: "ScheduledTaskEnded";
    } & ScheduledTaskEndedMessage
    | {
        MessageType: "ScheduledTasksInfo";
    } & ScheduledTasksInfoMessage
    | {
        MessageType: "SeriesTimerCancelled";
    } & SeriesTimerCancelledMessage
    | {
        MessageType: "SeriesTimerCreated";
    } & SeriesTimerCreatedMessage
    | {
        MessageType: "ServerRestarting";
    } & ServerRestartingMessage
    | {
        MessageType: "ServerShuttingDown";
    } & ServerShuttingDownMessage
    | {
        MessageType: "Sessions";
    } & SessionsMessage
    | {
        MessageType: "SyncPlayCommand";
    } & SyncPlayCommandMessage
    | {
        MessageType: "SyncPlayGroupUpdate";
    } & SyncPlayGroupUpdateCommandMessage
    | {
        MessageType: "TimerCancelled";
    } & TimerCancelledMessage
    | {
        MessageType: "TimerCreated";
    } & TimerCreatedMessage
    | {
        MessageType: "UserDataChanged";
    } & UserDataChangedMessage
    | {
        MessageType: "UserDeleted";
    } & UserDeletedMessage
    | {
        MessageType: "UserUpdated";
    } & UserUpdatedMessage