public static IsHla GetInstance(Hla hla)
        {
            IsHla isHla = new IsHla();

            isHla.Hla = hla.ToString();
            return(isHla);
        }
        public override bool Equals(object obj)
        {
            IsHla other = obj as IsHla;

            if (other == null)
            {
                return(false);
            }
            else
            {
                return(Hla.Equals(other.Hla));
            }
        }