code: def test_unsupported_items_count():
      count = ItemsCount("Hacker")
  
      with pytest.raises(ValueError):
          count([])
  
file_path: sumy/tests/test_utils/test_utils.py
imports: from __future__ import absolute_import, division, print_function, unicode_literals
  import pytest
  from sumy.utils import get_stop_words, read_stop_words, ItemsCount, normalize_language
  from ..utils import expand_resource_path
label_desc: Use image node_id 6 for calling a global function with example usage: test_unsupported_items_count() without return types