code: def test_get_class_from_name(self):
      kls = _get_class_from_name(CLASS_NAME)
      self.assertEqual(datetime, kls)
  
imports: from __future__ import absolute_import
  import unittest
  from datetime import datetime
  from sagemaker.serve.detector.pickler import _get_class_from_name
label_desc: Use image node_id 1 for calling the TestModelBuilder obj's underlying member method code with example usage: obj.test_get_class_from_name() without return types