code: def test_create_missing_value(self):
      sf_label = random.randint(0, self.num_labels - 1)
      sf_session_id = max(self.data[self.session_id])
      sf = self.data.append(
          tc.SFrame(
              {
                  self.features[0]: [None],
                  self.features[1]: [3.14],
                  self.features[2]: [5.23],
                  self.target: [sf_label],
                  self.session_id: [sf_session_id],
              }
          )
      )
      with self.assertRaises(_ToolkitError):
          tc.activity_classifier.create(
              sf,
              features=self.features,
              target=self.target,
              session_id=self.session_id,
              prediction_window=self.prediction_window,
              validation_set=None,
          )
  
imports: from __future__ import print_function
  from __future__ import division
  from __future__ import absolute_import
  import unittest
  import turicreate
  import random
  import tempfile
  import math
  import numpy
  from numbers import Number
  from .None import util
  import pytest
  from turicreate.toolkits._internal_utils import _mac_ver
  from turicreate.toolkits._main import ToolkitError
  import uuid
label_desc: Use image node_id 2 for calling the ActivityClassifierCreateStressTests obj's underlying member method code with example usage: obj.test_create_missing_value() without return types