BEGIN:VCALENDAR
VERSION:2.0
PRODID:spatie/icalendar-generator
BEGIN:VTIMEZONE
TZID:UTC
BEGIN:STANDARD
DTSTART:20251114T115222
TZOFFSETFROM:+0000
TZOFFSETTO:+0000
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BEGIN:VEVENT
UID:6a7b0cf6ca139
DTSTAMP:20260811T115222Z
SUMMARY:Hayato Sumino
DTSTART:20270110T190000Z
DTEND:20270110T190000Z
END:VEVENT
END:VCALENDAR