docstr: Assert that an object can be pickled and unpickled. This assertion
  assumes that the desired behavior is that the unpickled object compares
  equal to the original object, but is not the same object.
code: def assertPicklable(
      self,
      obj,
      singleton=False,
      asfile=False,
      dump_kwargs=None,
      load_kwargs=None,
  ):
      """
      Assert that an object can be pickled and unpickled. This assertion
      assumes that the desired behavior is that the unpickled object compares
      equal to the original object, but is not the same object.
      """
      get_nobj = self._get_nobj_file if asfile else self._get_nobj_bytes
      dump_kwargs = dump_kwargs or {}
      load_kwargs = load_kwargs or {}
  
      nobj = get_nobj(obj, dump_kwargs, load_kwargs)
      if not singleton:
          self.assertIsNot(obj, nobj)
      self.assertEqual(obj, nobj)
  
imports: from __future__ import unicode_literals
  import os
  import time
  import subprocess
  import warnings
  import tempfile
  import pickle
  import pytest
label_desc: Use image node_id 3 for calling the PicklableMixin obj's underlying member method code with example usage: obj.assertPicklable(obj, singleton, asfile, dump_kwargs, load_kwargs) without return types