## Object Hierarchy

        GObject
            GDataParsable
                GDataEntry
                    GDataAccessRule
                    GDataCalendarCalendar
                    GDataCalendarEvent
                    GDataComment
                        GDataPicasaWebComment
                        GDataYouTubeComment
                    GDataContactsContact
                    GDataContactsGroup
                    GDataDocumentsEntry
                        GDataDocumentsDocument
                            GDataDocumentsPresentation
                            GDataDocumentsSpreadsheet
                            GDataDocumentsText
                        GDataDocumentsFolder
                    GDataPicasaWebAlbum
                    GDataPicasaWebFile
                    GDataPicasaWebUser
                    GDataYouTubeVideo
                GDataAPPCategories
                GDataAuthor
                GDataFeed
                    GDataCalendarFeed
                    GDataDocumentsFeed
                    GDataPicasaWebFeed
                GDataCategory
                    GDataYouTubeCategory
                GDataGContactCalendar
                GDataGContactEvent
                GDataGContactExternalID
                GDataGContactJot
                GDataGContactLanguage
                GDataGContactRelation
                GDataGContactWebsite
                GDataGDEmailAddress
                GDataGDIMAddress
                GDataGDName
                GDataGDOrganization
                GDataGDPhoneNumber
                GDataGDPostalAddress
                GDataGDReminder
                GDataGDWhen
                GDataGDWhere
                GDataGDWho
                GDataGenerator
                GDataLink
                GDataMediaCategory
                GDataMediaContent
                    GDataYouTubeContent
                GDataMediaCredit
                    GDataYouTubeCredit
                GDataMediaThumbnail
                GDataYouTubeState
            GDataAuthorizationDomain
            GDataBatchOperation
            GDataService
                GDataCalendarService
                GDataContactsService
                GDataDocumentsService
                GDataPicasaWebService
                GDataYouTubeService
            GDataQuery
                GDataCalendarQuery
                GDataContactsQuery
                GDataDocumentsQuery
                GDataPicasaWebQuery
                GDataYouTubeQuery
            GDataClientLoginAuthorizer
            GInputStream
                GDataDownloadStream
            GDataOAuth1Authorizer
            GOutputStream
                GDataUploadStream
        GInterface
            GDataAccessHandler
            GDataComparable
            GDataAuthorizer
            GDataBatchable
            GDataCommentable
        GBoxed
            GDataColor
        GEnum
            GDataDocumentsServiceError
            GDataYouTubeAge
            GDataYouTubeFormat
            GDataYouTubePermission
            GDataYouTubeSafeSearch
            GDataYouTubeServiceError
            GDataYouTubeSortOrder
            GDataYouTubeStandardFeedType
            GDataYouTubeUploader
            GDataMediaMedium
            GDataMediaExpression
            GDataPicasaWebVisibility