code: def test_next_ifilter(self):
      self.run_test(
          "def next_ifilter(n): x = filter(abs,n) ; next(x) ; return list(map(str, x))",
          list(range(-5, 5)),
          next_ifilter=[List[int]],
      )
  
imports: from pythran.tests import TestEnv
  import unittest
  import numpy
  from pythran.typing import List, NDArray
label_desc: Use image node_id 26 for calling the TestItertools obj's underlying member method code with example usage: obj.test_next_ifilter() without return types