code: def sample_run():
      exp = {
          "name": "test_exp",
          "sources": [],
          "doc": "",
          "base_dir": os.path.join(
              os.path.dirname(__file__), "..", ".."
          ),
      }
      host = {
          "hostname": "test_host",
          "cpu_count": 1,
          "python_version": "3.4",
      }
      config = {"config": "True", "foo": "bar", "answer": 42}
      command = "run"
      meta_info = {"comment": "test run"}
      return {
          "_id": "FEDCBA9876543210",
          "ex_info": exp,
          "command": command,
          "host_info": host,
          "start_time": T1,
          "config": config,
          "meta_info": meta_info,
      }
  
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 2 for calling a global function with example usage: sample_run() and returns: dict