code: def test_nested_has_free_var(self):
      code = """
              items = [a for a in [1] if [a for _ in [0]]]
          """
      outputs = {"items": [1]}
      self._check_in_scopes(code, outputs, scopes=["class"])
  
imports: import doctest
  import textwrap
  import types
  import unittest
label_desc: Use image node_id 37 for calling the ListComprehensionTest obj's underlying member method code with example usage: obj.test_nested_has_free_var() without return types