public static void DoGenericValidation(VatDeclaration declaration)
            {
                DoGenericValidation<VatDeclarationException>(declaration);
            }

            public static void DoGenericValidation(IcpDeclaration declaration)
            {
                DoGenericValidation<IcpDeclarationException>(declaration);
            }

            private static void DoGenericValidation<T>(DeclarationBase declaration) where T : Exception, new()
            {
                if(declaration.Period != "Corrent")
                    throw new T("Error01", "Period is wrong");

                throw new T("Error02", "Something else is wrong");
            }
            public class IcpDeclarationException : FaultException
            {
                public IcpDeclarationException(string code, string description)
                    : base(new FaultReason(description), new FaultCode("AI" + code))
                {
                }

                public string OnzeCode { get; set; }
            }