def handle_registration(self, person, event_id):
data = person['events'][event_id]
Registration.upsert({'person_id': person['Person ID'],
'event_id': event_id,
'attendee_type': data['Type of Attendee'],
'booking_ref': data['Booking Ref'],
'booker_firstname': data['Bookers Firstname'],
'booker_lastname': data['Bookers lastname'],
}, batch=self.batch)
