CardPaymentMethod - The card payment object is used to make payment using either plain card number, saved card instrument id or using cryptogram.

CustomerDetails - The customer details that are necessary.

APIErrorType - api_error.

AppProvider - Specify the provider through which the payment must be processed.

AuthenticationErrorType - authentication_error.

CardCardBankName - One of ["Kotak", "ICICI", "RBL", "BOB", "Standard Chartered"].

CardChannel - The channel for card payments can be "link" or "post".

CardEMICardBankName - Card bank name, required for EMI payments.

CardlessEMIProvider - One of [`flexmoney`, `zestmoney`, `hdfc`, `icici`, `cashe`, `idfc`, `kotak`].

ErrorResponseType - One of ["invalid_request_error", "authentication_error", "rate_limit_error", "validation_error", "api_error"].

OrderPayResponseAction - One of ["link", "custom", "form"].

OrderPayResponseChannel - One of ["link", "collect", "qrcode"].

OrderPayResponsePaymentMethod - One of ["upi", "netbanking", "card", "app", "cardless_emi", "paylater"].

PaylaterProvider - One of ["kotak", "flexipay", "zestmoney", "lazypay", "olapostpaid","simpl", "freechargepaylater"].

RateLimitErrorType - rate_limit_error.

UpiChannel - Specify the channel through which the payment must be processed.