在响应头中正确地标识服务器。
该响应既标识人员又提供具体的数据。
The response both identifies the person and provides the specific data.
存在多个业务流程实例时，需要能够唯一地标识返回响应的流程实例。
When there are multiple process instances, you need to be able to uniquely identify the process instance that returns the response.
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