def METHOD_NAME(cal, fossil, now):
    if len(fossil['contributions']) == 0:
        serialize_event(cal, fossil, now)
    else:
        for sfossil in fossil['contributions']:
            if sfossil['startDate']:
                sfossil['id'] = '{}-{}'.format(fossil['id'], sfossil['id'])
                serialize_event(cal, sfossil, now, id_prefix='indico-contribution')