code: def test_unicode_object_to_unicode():
      method = "__str__" if py3k.PY3 else "__unicode__"
      instance = _build_test_instance(method, UNICODE_STRING)
  
      returned = py3k.to_unicode(instance)
      _assert_strings_equal(UNICODE_STRING, returned)
  
file_path: sumy/tests/test_utils/test_compat.py
imports: from __future__ import absolute_import, division, print_function, unicode_literals
  import pytest
  from sumy import _compat
label_desc: Use image node_id 11 for calling a global function with example usage: test_unicode_object_to_unicode() without return types