code: def test_save_and_load(self):
      with test_util.TempDirectory() as filename:
          self.model.save(filename)
          self.model = tc.load_model(filename)
  
          self.test_predict()
          print("Predict passed")
          self.test_get()
          print("Get passed")
          self.test_summary()
          print("Summary passed")
          self.test__list_fields()
          print("List fields passed")
  
imports: from __future__ import print_function
  from __future__ import division
  from __future__ import absolute_import
  import unittest
  import pytest
  from .None import util
  import turicreate
  import tempfile
  import numpy
  import platform
  import pytest
  import sys
  import os
  from turicreate.toolkits._main import ToolkitError
  from turicreate.toolkits._internal_utils import _raise_error_if_not_sarray, _mac_ver
  from six import StringIO
label_desc: Use image node_id 39 for calling the ObjectDetectorTest obj's underlying member method code with example usage: obj.test_save_and_load() without return types