code: def test_is_packages(self, module, is_package):
      assert is_package == self.arcadia_source_finder.is_package(module)
  
imports: import stat
  import unittest
  import yaml
  from collections import namedtuple
  from unittest.mock import patch
  from parameterized import parameterized
  import __res
label_desc: Use image node_id 4 for calling the TestLibraryWithoutNamespace obj's underlying member method code with example usage: obj.test_is_packages(module, is_package) without return types