def get_package_url(cls, package, session=None, silent=False):
        response = get("{}/packages/{}".format(cls.bower_base_uri, package))
        return response.json().get("url", None)
def test_impl(n):
            df = pd.DataFrame({'A': np.arange(n), 'B': np.arange(n) + 1.0})
            df1 = df[df.A > 5]
            return len(df1.B)