code: def src_token_list(tmp_path: Path):
      with (tmp_path / "src_tokens.txt").open("w") as f:
          f.write("<blank>\n")
          for c in string.ascii_letters:
              f.write(f"{c}\n")
          f.write("<unk>\n")
          f.write("<sos/eos>\n")
      return tmp_path / "src_tokens.txt"
  
file_path: espnet/test/espnet2/bin/test_st_inference.py
imports: import string
  from argparse import ArgumentParser
  from pathlib import Path
  import numpy
  import pytest
  from espnet2.bin.st_inference import Speech2Text, get_parser, main
  from espnet2.tasks.st import STTask
  from espnet.nets.beam_search import Hypothesis
label_desc: Use image node_id 4 for calling a global function with example usage: src_token_list(tmp_path) and returns: unknown