/// <summary>
/// Gets an <see cref="ISeriesIdentifier"/> for this <see cref="Series"/>.
/// </summary>
/// <remarks>An <see cref="ISeriesIdentifier"/> can be used in situations where you only
/// need some data about the <see cref="Series"/>, but not the <see cref="Series"/> itself. It can be problematic
/// to hold references to <see cref="Series"/> objects outside the context of an <see cref="IImageViewer"/>
/// because they are no longer valid when the viewer is closed; in these situations, it may be appropriate to
/// use an identifier.
/// </remarks>
public ISeriesIdentifier GetIdentifier()
{
return(_sop.GetSeriesIdentifier());
}