code: def _caffe2_model_dir(self, model):
      caffe2_home = os.path.expanduser("~/.caffe2")
      models_dir = os.path.join(caffe2_home, "models")
      return os.path.join(models_dir, model)
  
file_path: pytorch/scripts/model_zoo/update-caffe2-models.py
imports: import os
  import subprocess
  import sys
  import tarfile
  import tempfile
  from urllib.request import urlretrieve
  from caffe2.python.models.download import deleteDirectory, downloadFromURLToFile, getURLFromName
label_desc: Use image node_id 2 for calling the SomeClass obj's underlying member method code with example usage: obj._caffe2_model_dir(model) and returns: os