doc: http://open.youku.com/docs/doc?id=86

def search_show_top_unite(self, category, genre=None, area=None,
                              year=None, orderby=None, headnum=1,
                              tailnum=1, onesiteflag=None,
                              page=1, count=20):
        """doc: http://open.youku.com/docs/doc?id=86
        """
        url = 'https://openapi.youku.com/v2/searches/show/top_unite.json'
        params = {
            'client_id': self.client_id,
            'category': category,
            'genre': genre,
            'area': area,
            'year': year,
            'orderby': orderby,
            'headnum': headnum,
            'tailnum': tailnum,
            'onesiteflag': onesiteflag,
            'page': page,
            'count': count
        }
        params = remove_none_value(params)
        r = requests.get(url, params=params)
        check_error(r)
        return r.json()