# Functions
Failed use to response error message.
FailedWithHttpCode 和 Failed 基本一致 只不过默认加了 WithHttpCode, 当然用户也可以添加新的 WithHttpCode 用来覆盖默认的 WithHttpCode.
FailedWithNoErrorDetails 不对外暴露错误细节 不暴露错误细节， 目前是强制执行 WithInternalServerError() WithUnKnownException().
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Success use to response success data.
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WithInternalServerError 遇到 exception.InternalServerError 时 把 Msg 替换为 Reason, 避免对外暴露太多的错误细节.
WithJoinReasonMsg 合并 Reason 和 Msg 到 Msg.
WithUnKnownException 遇到 exception.UnKnownException 时 把 Msg 替换为 Reason, 避免对外暴露太多的错误细节.
# Interfaces
Option configures how we set up the data.