// Load a booster from a model file.
public static Booster FromFile(string fileName)
{
Check.NonNull(fileName, nameof(fileName));
var handle = IntPtr.Zero;
var numIteration = 0;
PInvokeException.Check(PInvoke.BoosterCreateFromModelfile(fileName, ref numIteration, ref handle),
nameof(PInvoke.BoosterCreateFromModelfile));
return new Booster(handle, numIteration);
}
