Get a user's favorite anime.

        :param str username: User to get favorites from.

def get_favorites(self, username):
        """Get a user's favorite anime.

        :param str username: User to get favorites from.
        """

        r = self._query_('/users/%s/favorite_anime' % username, 'GET')

        results = [Favorite(item) for item in r.json()]
        return results