code: def test_repr(self):
      for model in self.models:
          self.assertEqual(type(str(model)), str)
          self.assertEqual(type(model.__repr__()), str)
  
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 29 for calling the DrawingClassifierTest obj's underlying member method code with example usage: obj.test_repr() without return types