code: def test_pickle():
      """[Utils] Check that pickling a standard object works."""
      utils.pickle_save(d, "d")
      test = utils.pickle_load("d")
  
      subprocess.check_call(["rm", "d.pkl"])
  
      assert isinstance(d, dict)
      assert test["entry1"] == "test"
      assert test["entry2"] == "also_test"
  
imports: from __future__ import division
  import os
  import numpy
  import sysconfig
  import subprocess
  from mlens import config
  from mlens.utils import utils
  from mlens.utils.exceptions import ParallelProcessingError
  from time import sleep
label_desc: Use image node_id 7 for calling a global function with example usage: test_pickle() without return types