toJson method
Implementation
Map<String, dynamic> toJson() =>
{
'application_id': getApplicationId(),
'pg': pg,
'method': method,
'methods': methods,
'name': name,
'price': price,
'tax_free': taxFree,
'order_id': orderId,
'use_order_id': useOrderId,
'params': params,
'account_expire_at': accountExpireAt,
'show_agree_window': showAgreeWindow
};