code: def assertLambdaNodes(self, matching_nodes, expected_bodies):
      self.assertEqual(len(matching_nodes), len(expected_bodies))
      for node in matching_nodes:
          self.assertIsInstance(node, gast.Lambda)
          self.assertIn(
              parser.unparse(
                  node.body, include_encoding_marker=False
              ).strip(),
              expected_bodies,
          )
  
imports: import ast
  import collections
  import textwrap
  import gast
  from tensorflow.python.autograph.pyct import anno
  from tensorflow.python.autograph.pyct import ast_util
  from tensorflow.python.autograph.pyct import loader
  from tensorflow.python.autograph.pyct import parser
  from tensorflow.python.autograph.pyct import pretty_printer
  from tensorflow.python.autograph.pyct import qual_names
  from tensorflow.python.platform import test
label_desc: Use image node_id 22 for calling the AstUtilTest obj's underlying member method code with example usage: obj.assertLambdaNodes(matching_nodes, expected_bodies) without return types