ItemFields:
| "AirTime"
| "CanDelete"
| "CanDownload"
| "ChannelInfo"
| "Chapters"
| "Trickplay"
| "ChildCount"
| "CumulativeRunTimeTicks"
| "CustomRating"
| "DateCreated"
| "DateLastMediaAdded"
| "DisplayPreferencesId"
| "Etag"
| "ExternalUrls"
| "Genres"
| "ItemCounts"
| "MediaSourceCount"
| "MediaSources"
| "OriginalTitle"
| "Overview"
| "ParentId"
| "Path"
| "People"
| "PlayAccess"
| "ProductionLocations"
| "ProviderIds"
| "PrimaryImageAspectRatio"
| "RecursiveItemCount"
| "Settings"
| "SeriesStudio"
| "SortName"
| "SpecialEpisodeNumbers"
| "Studios"
| "Taglines"
| "Tags"
| "RemoteTrailers"
| "MediaStreams"
| "SeasonUserData"
| "DateLastRefreshed"
| "DateLastSaved"
| "RefreshState"
| "ChannelImage"
| "EnableMediaSourceDisplay"
| "Width"
| "Height"
| "ExtraIds"
| "LocalTrailerCount"
| "IsHD"
| "SpecialFeatureCount"
Used to control the data that gets attached to DtoBaseItems.