code: def tinydb_obs(tmpdir):
      return TinyDbObserver(path=tmpdir.strpath)
  
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 1 for calling a global function with example usage: tinydb_obs(tmpdir) and returns: TinyDbObserver