def METHOD_NAME(self, item):
    eid_url = item["htmlLink"]
    parsed_url = urlparse(eid_url)
    query_parameters = parse_qs(parsed_url.query)
    event_id = query_parameters.get('eid', [None])[0]
    summary = item.get('summary', '')
    start_date = item['start'].get('dateTime', '')
    end_date = item['end'].get('dateTime', '')
    attendees = [attendee['email'] for attendee in item.get('attendees', [])]
    attendees_str = ','.join(attendees)
    return event_id, summary, start_date, end_date, attendees_str