code: def test_contains_slice(self):
      self.run_test(
          "def contains_slice(a):\n b=[1,2,3,8,7,4]\n return a in b[1:a//2]",
          8,
          contains_slice=[int],
      )
  
imports: from pythran.tests import TestEnv
  from pythran.typing import List, NDArray
  import numpy
label_desc: Use image node_id 2 for calling the TestList obj's underlying member method code with example usage: obj.test_contains_slice() without return types