toJson method
Implementation
@override
Map<String, dynamic> toJson([dynamic extra]) {
return {
"@type": CONSTRUCTOR,
"currency": currency,
"total_amount": totalAmount,
"is_recurring": isRecurring,
"is_first_recurring": isFirstRecurring,
"invoice_payload": invoicePayload,
"shipping_option_id": shippingOptionId,
"order_info": orderInfo?.toJson(),
"telegram_payment_charge_id": telegramPaymentChargeId,
"provider_payment_charge_id": providerPaymentChargeId,
};
}