code: def test_swedish_stemmer():
      swedish_stemmer = Stemmer("swedish")
      assert "sov" == swedish_stemmer("sover")
  
file_path: sumy/tests/test_stemmers.py
imports: from __future__ import absolute_import, division, print_function, unicode_literals
  import pytest
  from sumy.nlp.stemmers import null_stemmer, Stemmer
label_desc: Use image node_id 9 for calling a global function with example usage: test_swedish_stemmer() without return types