purchaseWithPlanVendorId method Null safety

Future<Map> purchaseWithPlanVendorId(
  1. String vendorId,
  2. [String? contentId]
)

Implementation

static Future<Map<dynamic, dynamic>> purchaseWithPlanVendorId(String vendorId,
    [String? contentId]) async {
  final Map<dynamic, dynamic> product = await _channel.invokeMethod(
      'purchaseWithPlanVendorId',
      <String, dynamic>{'vendorId': vendorId, 'contentId': contentId});
  return product;
}