code: def test_pow_accuracy(self):
      code = """
          from math import factorial
          def pow_accuracy(N, i):
              N = N ** i
              p = 0.0000001 * 1.0
  
              binomial_coef = 1. * factorial(N) / factorial(i) / factorial(N-i)
              pp = binomial_coef * p**i * (1-p)**(N-i)
              return pp"""
      self.run_test(code, 3, 2, pow_accuracy=[int, int])
  
imports: from pythran.tests import TestEnv
label_desc: Use image node_id 38 for calling the TestMath obj's underlying member method code with example usage: obj.test_pow_accuracy() without return types