CmisSync.Lib.Accumulator.RemoteObjectMovedOrRenamedAccumulator.GetParentId C# (CSharp) Метод

        private string GetParentId(AbstractFolderEvent e) {
            if (e is FolderEvent) {
                return (e as FolderEvent).RemoteFolder.ParentId;
            } else if (e is FileEvent) {
                return (e as FileEvent).RemoteFile.Parents[0].Id;
            } else {
                throw new ArgumentException();
            }
        }