code: def test_access_nonexistent_column(self):
      sf = tc.SFrame({"\u00aa": [1, 2, 3], "a": [4, 5, 6]})
      with self.assertRaises(RuntimeError):
          sf["b"]
      with self.assertRaises(RuntimeError):
          sf["\u00ab"]
  
file_path: turicreate/src/python/turicreate/test/test_unicode_strings.py
imports: from __future__ import print_function
  from __future__ import division
  from __future__ import absolute_import
  import six
  import unittest
  import turicreate
  import pytest
label_desc: Use image node_id 4 for calling the UnicodeStringTest obj's underlying member method code with example usage: obj.test_access_nonexistent_column() without return types