content: import pytest
  
  from whatlies.language import BytePairLanguage
  
  
  @pytest.fixture()
  def lang():
      return BytePairLanguage("en", vs=1000, dim=25, cache_dir="tests/cache")
  
  
  def test_single_token_words(lang):
      assert lang["red"].vector.shape == (25,)
      assert len(lang[["red", "blue"]]) == 2
  
  
  def test_similar_retreival(lang):
      assert len(lang.score_similar("hi", 10)) == 10
      assert len(lang.embset_similar("hi", 10)) == 10
  
  
  @pytest.mark.parametrize("item", [2, 0.12341])
  def test_raise_error(lang, item):
      with pytest.raises(ValueError):
          _ = lang[item]
  