text: public virtual ModifyDefaultCreditSpecificationResponse ModifyDefaultCreditSpecification(ModifyDefaultCreditSpecificationRequest request){var options = new InvokeOptions();options.RequestMarshaller = ModifyDefaultCreditSpecificationRequestMarshaller.Instance;options.ResponseUnmarshaller = ModifyDefaultCreditSpecificationResponseUnmarshaller.Instance;return Invoke<ModifyDefaultCreditSpecificationResponse>(request, options);}