public static TorquePerLength DecanewtonMeterPerMeters <T>(this T value) =>
 TorquePerLength.FromDecanewtonMeterPerMeters(Convert.ToDouble(value));
 public void NumberToDecanewtonMeterPerMetersTest() =>
 Assert.Equal(TorquePerLength.FromDecanewtonMeterPerMeters(2), 2.DecanewtonMeterPerMeters());