code: def read(self):
      return self.body
  
file_path: mlflow/tests/dev/test_update_ml_package_versions.py
imports: import json
  import re
  from pathlib import Path
  from unittest import mock
  import pytest
  from dev import update_ml_package_versions
label_desc: Use image node_id 2 for calling the MockResponse obj's underlying member method code with example usage: obj.read() and returns: self