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中级

实现服务降级响应

未完成
中级参考 代码结构已给出,请填写 ____ 处
def solve():
    from pyodide.http import open_url
    from io import StringIO
    import pandas as pd, json
    reg_csv = open_url(____).read()
    reg = pd.read_csv(StringIO(____))
    def degrade_response(____):
        healthy = reg[(____)&(____)]
        if not healthy.empty:
            return {'____': False, '____': healthy.iloc[____]['____']}
        if operation == '____':
            return {'____': True, '____': '____', '____': True}
        return {'____': True, '____': '____', '____': ____}
    for svc in ['____','____','____','____']:
        r = degrade_response(____)
        print(____)

示例

输入
solve()
期望输出
data-ingestion: degraded=False, info={"instance": "di-1"}
alert-engine: degraded=False, info={"instance": "ae-1"}
cmd-dispatcher: degraded=False, info={"instance": "cd-1"}
nonexistent-svc: degraded=True, info={"data": "cached_data", "stale": true}
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