code: def __enter__(self):
      if not os.path.exists(self.dir):
          os.makedirs(self.dir)
      return self.dir
  
imports: import os.path
  import shutil
  import sys
  import tempfile
  from contextlib import contextmanager
  from whoosh.filedb.filestore import FileStorage
  from whoosh.util import now, random_name
label_desc: Use image node_id 2 for calling the TempDir obj's underlying member method code with example usage: obj.__enter__() and returns: self