def METHOD_NAME(self):
    # The Cython cell defines the functions f() and call().
    ip = self._ip
    ip.run_cell_magic('cython', '-2', cython3_code)
    ip.ex('g = f(10); h = call(10)')
    self.assertEqual(ip.user_ns['g'], 2 // 10)
    self.assertEqual(ip.user_ns['h'], 2 // 10)