The values of those variables or tokens are never read from the request directly but rather get provided by the entry point component through the call-backs mentioned before.
并不从请求中直接读取这些变量或令牌的值，而是由入口点组件通过前面提到的回调提供它们。
The values of those variables or tokens are never read from the request directly but rather get provided by the entry point component through the call-backs mentioned before.
并不从请求中直接读取这些变量或令牌的值，而是由入口点组件通过前面提到的回调提供它们。
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