toMap method
Implementation
Map<String, dynamic> toMap() => {
"integrationKey": integrationKey,
"amount": amount,
"merchantReference": merchantReference,
"narration": narration,
"customer": customer,
"callbackUrl": callbackUrl,
"productCode": productCode,
"currency": currency,
"splitCode": splitCode,
"shouldTokenise": shouldTokenise,
};