'Toggle and Attendee\'s Checked in State'

@requires_auth
@replace_event_id
@can_access
@api.doc('check_in_toggle', responses=POST_RESPONSES)
@api.marshal_with(ATTENDEE)
def post(self, event_id, holder_identifier):

    holder = TicketingManager.attendee_check_in_out(event_id, holder_identifier)
    return (holder, 200)
