code: def test_import_unicode(self):
      self.assertIs(os, import_item("os"))
      self.assertIs(os.path, import_item("os.path"))
      self.assertIs(os.path.join, import_item("os.path.join"))
  
imports: import os
  from unittest import TestCase
  from traitlets.utils.importstring import import_item
label_desc: Use image node_id 1 for calling the TestImportItem obj's underlying member method code with example usage: obj.test_import_unicode() without return types