Share header with multiple response objects

Can there not just be a simple header generically at the response level not specific to each of the status codes? For our case, this kind of header is 99% the same across our codebase.

---

responses:
  200:
    description: no error
    headers:
      Content-Type:
        description: application/json
        type: string

It would be a pain to copy+paste this to each and every routine that supports HTTP JSON responses.

首先阅读 OpenAPI Specification repository 中关于 response object 的规则，并比较当前如何在各个状态码下定义 header。定义共享 response-level header 的有效范围和结构，然后更新相关的规范文本和示例，使该功能的行为明确无歧义。