检查设备事件版本连续性

def solve():
    from pyodide.http import open_url
    from io import StringIO
    import pandas as pd
    events_csv = open_url(____).read()
    events = pd.read_csv(StringIO(____))
    for did, grp in events.groupby(____):
        versions = sorted(grp['____'].tolist())
        expected = list(range(____, len(____)+____))
        ok = versions == expected
        gaps = [versions[i] for i in range(____,len(____)) if versions[i]-versions[i-____]!=____]
        print(f"____" + (____))