code: def test_no_leakage_to_locals(self):
      code = """
              def b():
                  [a for b in [1] for _ in []]
                  return b, locals()
              r, s = b()
              x = r is b
              y = list(s.keys())
          """
      self._check_in_scopes(
          code, {"x": True, "y": []}, scopes=["module"]
      )
      self._check_in_scopes(
          code, {"x": True, "y": ["b"]}, scopes=["function"]
      )
      self._check_in_scopes(code, raises=NameError, scopes=["class"])
  
imports: import doctest
  import textwrap
  import types
  import unittest
label_desc: Use image node_id 44 for calling the ListComprehensionTest obj's underlying member method code with example usage: obj.test_no_leakage_to_locals() without return types