code: def test_create_with_missing_value_in_label(self):
      sf = self.check_cross_sf
      sf = sf.remove_column(self.target)
      sf = sf.add_column(
          _tc.SArray([None] * len(sf), dtype=str), self.target
      )
      try:
          _tc.drawing_classifier.create(sf, self.target)
      except _ToolkitError as e:
          self.assertTrue("dropna" in str(e))
  
imports: from __future__ import print_function
  from __future__ import division
  from __future__ import absolute_import
  import os
  import turicreate
  from turicreate.toolkits._main import ToolkitError
  import numpy
  import tempfile
  from array import array
  import sys
  from .None import util
  import unittest
label_desc: Use image node_id 3 for calling the DrawingClassifierTest obj's underlying member method code with example usage: obj.test_create_with_missing_value_in_label() without return types