code: def test_unbound_local_inside_comprehension(self):
      def f():
          l = [None]
          return [1 for (l[0], l) in [[1, 2]]]
  
      with self.assertRaises(UnboundLocalError):
          f()
  
imports: import doctest
  import textwrap
  import types
  import unittest
label_desc: Use image node_id 28 for calling the ListComprehensionTest obj's underlying member method code with example usage: obj.test_unbound_local_inside_comprehension() and returns: unknown