@wechatpay-apiv3/wechatpay-deduction-service

微信支付委托代扣接入解决方案，覆盖周期扣款 / 先享后付场景下的纯签约、支付中签约、申请扣款、预扣费通知、解约、查询、退款、对账全链路，提供选型/示例代码/业务速查/质量评估/排障五大能力。Use when user mentions "委托代扣", "周期扣款", "周期扣费", "自动续费", "先享后付", "免密支付", "纯签约", "支付中签约", "预扣费通知", "申请扣款", or asks to "接入委托代扣", "要委托代扣接口示例代码", "排查委托代扣问题".