/// <summary>
/// Gets the identifier of the session that this application is part of.
///
/// A session is group of applications that were launched and logically belong together.
/// For example, when starting a new session in UFE that launches a game on multiple devices,
/// all engine instances running on those devices will have the same session identifier.
/// Conversely, sessions that were launched separately will have different session identifiers.
///
/// @see GetInstanceId
/// </summary>
/// <returns>Session identifier, or an invalid GUID if there is no local instance.</returns>
public static Guid GetSessionId()
{
Guid result;
Native_FApp.GetSessionId(out result);
return(result);
}