目录一、准备工作二、初始化配置三、实现支付功能1. 付款时序图2. 实现不同场景下的支付3. 支付结果回调四、退款功能实现退款时序图发起退款五、总结在当今数字支付的时代，移动支付已经成为各行各业的主流选择。支付
I am designing a RESTful API for a booking application. You can request a list of accommodations. And that\'s where I don\'t really know how to design the JSON represenation. This is my XML representa
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