StateVars {
  TransportState
  TransportStatus
  TransportErrorDescription
  TransportErrorURI
  TransportErrorHttpCode
  TransportErrorHttpHeaders
  PlaybackStorageMedium
  RecordStorageMedium
  PossiblePlaybackStorageMedia
  PossibleRecordStorageMedia
  CurrentPlayMode
  CurrentCrossfadeMode
  TransportPlaySpeed
  RecordMediumWriteStatus
  CurrentRecordQualityMode
  PossibleRecordQualityModes
  NumberOfTracks
  CurrentTrack
  CurrentSection
  CurrentTrackDuration
  CurrentMediaDuration
  CurrentTrackMetaData
  CurrentTrackURI
  AVTransportURI
  AVTransportURIMetaData
  NextAVTransportURI
  NextAVTransportURIMetaData
  RelativeTimePosition
  AbsoluteTimePosition
  RelativeCounterPosition
  AbsoluteCounterPosition
  CurrentTransportActions
  SleepTimerGeneration
  SnoozeRunning
  AlarmRunning
  AlarmIDRunning
  AlarmLoggedStartTime
  RestartPending
  LastChange
  NextTrackMetaData
  NextTrackURI
  EnqueuedTransportURIMetaData
  EnqueuedTransportURI
  CurrentValidPlayModes
  MuseSessions
  DirectControlClientID
  DirectControlAccountID
  DirectControlIsSuspended
  A_ARG_TYPE_SeekMode
  A_ARG_TYPE_SeekTarget
  A_ARG_TYPE_InstanceID
  A_ARG_TYPE_MemberList
  A_ARG_TYPE_TransportSettings
  A_ARG_TYPE_CurrentAVTransportURI
  A_ARG_TYPE_SourceState
  A_ARG_TYPE_VLIState
  A_ARG_TYPE_Queue
  A_ARG_TYPE_MemberID
  A_ARG_TYPE_URI
  A_ARG_TYPE_LIST_URI
  A_ARG_TYPE_URIMetaData
  A_ARG_TYPE_LIST_URIMetaData
  A_ARG_TYPE_ObjectID
  A_ARG_TYPE_GroupID
  A_ARG_TYPE_PlayerID
  A_ARG_TYPE_TrackNumber
  A_ARG_TYPE_NumTracks
  A_ARG_TYPE_NumTracksChange
  A_ARG_TYPE_EnqueueAsNext
  A_ARG_TYPE_SavedQueueTitle
  A_ARG_TYPE_ResumePlayback
  A_ARG_TYPE_ISO8601Time
  A_ARG_TYPE_AlarmVolume
  A_ARG_TYPE_AlarmIncludeLinkedZones
  A_ARG_TYPE_ResetVolumeAfter
  A_ARG_TYPE_SleepTimerState
  A_ARG_TYPE_AlarmState
  A_ARG_TYPE_StreamRestartState
  A_ARG_TYPE_RejoinGroup
  QueueUpdateID
  A_ARG_TYPE_TrackList
}

Actions {
  SetAVTransportURI(InstanceID: ui4, CurrentURI: String, CurrentURIMetaData: String)
  SetNextAVTransportURI(InstanceID: ui4, NextURI: String, NextURIMetaData: String)
  AddURIToQueue(InstanceID: ui4, EnqueuedURI: String, EnqueuedURIMetaData: String, DesiredFirstTrackNumberEnqueued: ui4, EnqueueAsNext: Boolean) -> (FirstTrackNumberEnqueued: ui4, NumTracksAdded: ui4, NewQueueLength: ui4)
  AddMultipleURIsToQueue(InstanceID: ui4, UpdateID: ui4, NumberOfURIs: ui4, EnqueuedURIs: String, EnqueuedURIsMetaData: String, ContainerURI: String, ContainerMetaData: String, DesiredFirstTrackNumberEnqueued: ui4, EnqueueAsNext: Boolean) -> (FirstTrackNumberEnqueued: ui4, NumTracksAdded: ui4, NewQueueLength: ui4, NewUpdateID: ui4)
  ReorderTracksInQueue(InstanceID: ui4, StartingIndex: ui4, NumberOfTracks: ui4, InsertBefore: ui4, UpdateID: ui4)
  RemoveTrackFromQueue(InstanceID: ui4, ObjectID: String, UpdateID: ui4)
  RemoveTrackRangeFromQueue(InstanceID: ui4, UpdateID: ui4, StartingIndex: ui4, NumberOfTracks: ui4) -> (NewUpdateID: ui4)
  RemoveAllTracksFromQueue(InstanceID: ui4)
  SaveQueue(InstanceID: ui4, Title: String, ObjectID: String) -> (AssignedObjectID: String)
  BackupQueue(InstanceID: ui4)
  CreateSavedQueue(InstanceID: ui4, Title: String, EnqueuedURI: String, EnqueuedURIMetaData: String) -> (NumTracksAdded: ui4, NewQueueLength: ui4, AssignedObjectID: String, NewUpdateID: ui4)
  AddURIToSavedQueue(InstanceID: ui4, ObjectID: String, UpdateID: ui4, EnqueuedURI: String, EnqueuedURIMetaData: String, AddAtIndex: ui4) -> (NumTracksAdded: ui4, NewQueueLength: ui4, NewUpdateID: ui4)
  ReorderTracksInSavedQueue(InstanceID: ui4, ObjectID: String, UpdateID: ui4, TrackList: String, NewPositionList: String) -> (QueueLengthChange: i4, NewQueueLength: ui4, NewUpdateID: ui4)
  GetMediaInfo(InstanceID: ui4) -> (NrTracks: 0..=65535, MediaDuration: String, CurrentURI: String, CurrentURIMetaData: String, NextURI: String, NextURIMetaData: String, PlayMedium: [NONE, NETWORK], RecordMedium: [NONE], WriteStatus: String)
  GetTransportInfo(InstanceID: ui4) -> (CurrentTransportState: [STOPPED, PLAYING, PAUSED_PLAYBACK, TRANSITIONING], CurrentTransportStatus: String, CurrentSpeed: [1])
  GetPositionInfo(InstanceID: ui4) -> (Track: 0..=65535, TrackDuration: String, TrackMetaData: String, TrackURI: String, RelTime: String, AbsTime: String, RelCount: i4, AbsCount: i4)
  GetDeviceCapabilities(InstanceID: ui4) -> (PlayMedia: String, RecMedia: String, RecQualityModes: String)
  GetTransportSettings(InstanceID: ui4) -> (PlayMode: [NORMAL, REPEAT_ALL, REPEAT_ONE, SHUFFLE_NOREPEAT, SHUFFLE, SHUFFLE_REPEAT_ONE] = NORMAL, RecQualityMode: String)
  GetCrossfadeMode(InstanceID: ui4) -> (CrossfadeMode: Boolean)
  Stop(InstanceID: ui4)
  Play(InstanceID: ui4, Speed: [1])
  Pause(InstanceID: ui4)
  Seek(InstanceID: ui4, Unit: [TRACK_NR, REL_TIME, TIME_DELTA], Target: String)
  Next(InstanceID: ui4)
  Previous(InstanceID: ui4)
  SetPlayMode(InstanceID: ui4, NewPlayMode: [NORMAL, REPEAT_ALL, REPEAT_ONE, SHUFFLE_NOREPEAT, SHUFFLE, SHUFFLE_REPEAT_ONE] = NORMAL)
  SetCrossfadeMode(InstanceID: ui4, CrossfadeMode: Boolean)
  NotifyDeletedURI(InstanceID: ui4, DeletedURI: String)
  GetCurrentTransportActions(InstanceID: ui4) -> (Actions: String)
  BecomeCoordinatorOfStandaloneGroup(InstanceID: ui4) -> (DelegatedGroupCoordinatorID: String, NewGroupID: String)
  DelegateGroupCoordinationTo(InstanceID: ui4, NewCoordinator: String, RejoinGroup: Boolean)
  BecomeGroupCoordinator(InstanceID: ui4, CurrentCoordinator: String, CurrentGroupID: String, OtherMembers: String, TransportSettings: String, CurrentURI: String, CurrentURIMetaData: String, SleepTimerState: String, AlarmState: String, StreamRestartState: String, CurrentQueueTrackList: String, CurrentVLIState: String)
  BecomeGroupCoordinatorAndSource(InstanceID: ui4, CurrentCoordinator: String, CurrentGroupID: String, OtherMembers: String, CurrentURI: String, CurrentURIMetaData: String, SleepTimerState: String, AlarmState: String, StreamRestartState: String, CurrentAVTTrackList: String, CurrentQueueTrackList: String, CurrentSourceState: String, ResumePlayback: Boolean)
  ChangeCoordinator(InstanceID: ui4, CurrentCoordinator: String, NewCoordinator: String, NewTransportSettings: String, CurrentAVTransportURI: String)
  ChangeTransportSettings(InstanceID: ui4, NewTransportSettings: String, CurrentAVTransportURI: String)
  ConfigureSleepTimer(InstanceID: ui4, NewSleepTimerDuration: String)
  GetRemainingSleepTimerDuration(InstanceID: ui4) -> (RemainingSleepTimerDuration: String, CurrentSleepTimerGeneration: ui4)
  RunAlarm(InstanceID: ui4, AlarmID: ui4, LoggedStartTime: String, Duration: String, ProgramURI: String, ProgramMetaData: String, PlayMode: [NORMAL, REPEAT_ALL, REPEAT_ONE, SHUFFLE_NOREPEAT, SHUFFLE, SHUFFLE_REPEAT_ONE] = NORMAL, Volume: ui2, IncludeLinkedZones: Boolean)
  StartAutoplay(InstanceID: ui4, ProgramURI: String, ProgramMetaData: String, Volume: ui2, IncludeLinkedZones: Boolean, ResetVolumeAfter: Boolean)
  GetRunningAlarmProperties(InstanceID: ui4) -> (AlarmID: ui4, GroupID: String, LoggedStartTime: String)
  SnoozeAlarm(InstanceID: ui4, Duration: String)
  EndDirectControlSession(InstanceID: ui4)
}