code: def _get_full_cpu_image_uri(version, py_version):
      return image_uris.retrieve(
          "pytorch",
          REGION,
          version=version,
          py_version=py_version,
          instance_type=CPU,
          image_scope="training",
      )
  
imports: from __future__ import absolute_import
  import logging
  import json
  import os
  import pytest
  from mock import ANY, MagicMock, Mock, patch
  from packaging.version import Version
  from sagemaker import image_uris
  from sagemaker.pytorch import defaults
  from sagemaker.pytorch import PyTorch, PyTorchPredictor, PyTorchModel
  from sagemaker.instance_group import InstanceGroup
  from sagemaker.session_settings import SessionSettings
label_desc: Use image node_id 3 for calling a global function with example usage: _get_full_cpu_image_uri(version, py_version) and returns: image_uris