code: def test_no_unk():
      with pytest.raises(RuntimeError):
          TokenIDConverter(["a", "b", "c"])
  
file_path: espnet/test/espnet2/text/test_token_id_converter.py
imports: from pathlib import Path
  import numpy
  import pytest
  from espnet2.text.token_id_converter import TokenIDConverter
label_desc: Use image node_id 6 for calling a global function with example usage: test_no_unk() without return types