code: def transformer(self):
      return transformers.ParentChildNodeTransformer()
  
file_path: astmonkey/astmonkey/tests/test_transformers.py
imports: import pytest
  import ast
  from astmonkey import transformers
label_desc: Use image node_id 1 for calling the TestParentChildNodeTransformer obj's underlying member method code with example usage: obj.transformer() and returns: transformers