public StepRoundingToken(StepMultiplierToken parent, RoundingType rounding)
 {
     this.parent   = parent ?? throw new ArgumentNullException(nameof(parent));
     this.Rounding = rounding;
 }
 public StepRoundingToken(StepMultiplierToken parent, RoundingType rounding)
     : base(parent)
 {
     this.Rounding = rounding;
 }
 public StepRoundingToken(StepMultiplierToken parent, RoundingType rounding)
     : base(parent)
 {
     this.Rounding = rounding;
 }