code: def test_convert_to_list(self):
      assert_equal(
          isinstance(TypeUtil.convert_to_list("foo"), list), True
      )
      assert_equal(isinstance(TypeUtil.convert_to_list(7), list), False)
  
imports: from nose.tools import assert_equal
  from ..type_util import TypeUtil
label_desc: Use image node_id 2 for calling the TestUtil obj's underlying member method code with example usage: obj.test_convert_to_list() without return types