用户只能修改前一节中讨论的设置。
The only Settings the user can change are the Settings I discussed in the previous section.
一旦某个端点不使用这种格式，就只能修改代码。
If you ever have an endpoint that doesn't use data in this format, then you have to change your code.
但这会引起一个并发症状：您只能修改序列中的条目。
This introduces a complication: You can only modify items in a sequence.
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