实现配置中心与动态更新

def solve():
    from pyodide.http import open_url
    from io import StringIO
    rate_limit_config_csv = open_url(____).read()
    import pandas as pd
    from io import StringIO
    cfg = pd.read_csv(StringIO(____))
    class ConfigCenter:
        def __init__(____):
            self.config = {}
            self.listeners = {}
        def set(____):
            old = self.config.get(____)
            self.config[key] = value
            for fn in self.listeners.get(____):
                fn(____)
        def get(____):
            return self.config.get(____)
        def watch(____):
            self.listeners.setdefault(____).append(____)
    cc = ConfigCenter()
    changes = []
    def on_change(____): changes.append(____)
    for _, row in cfg.iterrows():
        key = f"____"
        cc.set(key, {'____':int(____),'____':int(____),'____':row['____']})
        cc.watch(____)
    cc.set(____)
    cc.set(____)
    print(____)
    for key, val in sorted(cc.config.items()):
        print(____)
    print(____)