public bool HasBurf <TBurf>() where TBurf : IBurf { var burf = Burfs.OfType <TBurf>().FirstOrDefault(); return(burf != null); }
public TBurf GetBurf <TBurf>() where TBurf : IBurf { var burf = Burfs.OfType <TBurf>().FirstOrDefault(); return(burf); }