code: def test_tinydb_observer_creates_missing_directories(tmpdir):
      tinydb_obs = TinyDbObserver.create(
          path=os.path.join(tmpdir.strpath, "foo")
      )
      assert tinydb_obs.root == os.path.join(tmpdir.strpath, "foo")
  
imports: from __future__ import division, print_function, unicode_literals, absolute_import
  import os
  import datetime
  import tempfile
  import io
  import pytest
  from tinydb import TinyDB
  from hashfs import HashFS
  from sacred.dependencies import get_digest
  from sacred.observers.tinydb_hashfs import TinyDbObserver, tiny_db_option
  from sacred.observers.tinydb_hashfs.bases import BufferedReaderWrapper
  from sacred import optional
  from sacred.experiment import Experiment
label_desc: Use image node_id 3 for calling a global function with example usage: test_tinydb_observer_creates_missing_directories(tmpdir) without return types