code: def refresh(self, movie):
          
          if '_tmdbtv_id' in movie:
              refreshed = {'_Datasource': self.name}
              tvseries_id = movie['_tmdbtv_id']
              series = self._tmdb_series(tvseries_id)
              alternatives = self._tmdb_alt_titles(tvseries_id)
              refreshed.update({'title': series['original_name'],
                                'year': datetime.strptime(series['first_air_date'], '%Y-%m-%d').year,
                                'genres': [x['name'] for x in series['genres']],
                                'networks': [x['name'] for x in series['networks']],
                                'countries': series['origin_country'],
                                'tmdb_votes': int(round(series.get('vote_average', 0) * 0.5))})
              for alt in alternatives['results']:
                  refreshed['title_%s' % alt['iso_3166_1'].lower()] = alt['title']
              if 'season' in movie:
                  season_num = movie['season']
                  season = self._tmdb_season(tvseries_id, season_num)
                  refreshed.update({'season_title': season['name']})
                  if 'episode' in movie:
                      episode_num = movie['episode']
                      episode = self._tmdb_episode(tvseries_id, season_num, episode_num)
                      credits = self._tmdb_credits(tvseries_id, season_num, episode_num)
                      refreshed.update({'episode_title': episode['name'],
                                        'directors': [x['name'] for x in credits['crew'] if x['department'] == 'Directing' and x['job'] == 'Director'],
                                        'writers': [x['name'] for x in credits['crew'] if x['department'] == 'Writing'],
                                        'cast': [x['name'] for x in credits['cast']],
                                        'guests': [x['name'] for x in credits['guest_stars']]})
              return refreshed
docs: Try to refresh metadata of the movie through the datasource.