code: def test_predict_without_fit(xseq, algorithm):
      crf = CRF(algorithm)
      with pytest.raises(Exception):
          crf.predict([xseq])
  
file_path: sklearn-crfsuite/tests/test_crf.py
imports: import os
  import pickle
  import pytest
  from sklearn.model_selection import cross_val_score
  from sklearn_crfsuite import CRF
label_desc: Use image node_id 4 for calling a global function with example usage: test_predict_without_fit(xseq, algorithm) without return types