code: def test_stopremoval_unit(list_input):
      su = units.StopRemoval()
      out = su.transform(list_input)
      assert "the" not in out
  
imports: import pytest
  import numpy
  from matchzoo.preprocessors import units
  import matchzoo
  import tempfile
  import os
label_desc: Use image node_id 8 for calling a global function with example usage: test_stopremoval_unit(list_input) without return types