Level3.fromJson constructor
      
      Level3.fromJson(
    
    
- Object? json
 
Implementation
factory Level3.fromJson(Object? json) {
  final map = (json as Map).cast<String, Object?>();
  return Level3(
    customerReference: map['customer_reference'] == null
        ? null
        : (map['customer_reference'] as String),
    lineItems: (map['line_items'] as List<Object?>)
        .map((el) => Level3LineItems.fromJson(el))
        .toList(),
    merchantReference: (map['merchant_reference'] as String),
    shippingAddressZip: map['shipping_address_zip'] == null
        ? null
        : (map['shipping_address_zip'] as String),
    shippingAmount: map['shipping_amount'] == null
        ? null
        : (map['shipping_amount'] as num).toInt(),
    shippingFromZip: map['shipping_from_zip'] == null
        ? null
        : (map['shipping_from_zip'] as String),
  );
}