实现告警抑制与去重

def solve():
    from pyodide.http import open_url
    from io import StringIO
    import pandas as pd
    alerts_csv = open_url(____).read()
    alerts = pd.read_csv(StringIO(____))
    DEDUP_WINDOW = ____
    def dedup_alerts(____):
        sorted_alerts = alerts_df.sort_values(____)
        seen = {}
        results = []
        for _, row in sorted_alerts.iterrows():
            key = f"____"
            last_ts = seen.get(____)
            if row['____'] - last_ts > window:
                results.append(____)
                seen[key] = row['____']
            else:
                results.append(____)
        return results
    results = dedup_alerts(____)
    fired = sum(____ for r in results if r['____']=='____')
    suppressed = sum(____ for r in results if r['____']=='____')
    print(____)
    for r in results:
        print(____)