def METHOD_NAME(self, session, partial_completions):
    user_ids = list(map(lambda x: x.user_id, partial_completions))
    favorites = (
        session.query(Save)
        .filter(
            Save.is_current == True,
            Save.user_id.in_(user_ids),
            Save.is_delete == False,
        )
        .all()
    )
    follows_counter = Counter(map(lambda x: x.user_id, favorites))
    for completion in partial_completions:
        completion.favorites = (
            follows_counter[completion.user_id] >= FAVORITES_THRESHOLD
        )