← 返回 stripe 的题目列表sendInvoiceReminder
类型：online_judge
Send invoice reminder notifications. Implement a method that sends a reminder notification when an invoice is unpaid and is 3 days away from the due date.
Example
Input
due_date: '2023-10-11'; current_date: '2023-10-08'; status: 'unpaid'
Output
Send Reminder