toJson method
Implementation
Map<String, dynamic> toJson() => {
"token_id": tokenId,
"masked_card_number": maskedCardNumber,
if (cardholderName != null) "cardholder_name": cardholderName,
"expiry_month": expiryMonth,
"expiry_year": expiryYear,
if (type != null) "type": type!.name,
if (network != null) "network": network!.name,
if (country != null) "country": country,
if (issuer != null) "issuer": issuer,
if (fingerprint != null) "fingerprint": fingerprint,
};