code: def hard_normalize(word):
      """Lower case the word and remove all non-alpha-numeric characters
      from the entire word.
      """
  
      non_alpha_numeric = re.compile(r"[\W]+")
      return non_alpha_numeric.sub("", word.lower())
  
file_path: ray/doc/source/serve/doc_code/whisper_example.py
imports: from ray import serve
  import re
  import subprocess
  from typing import List
  import starlette.requests
label_desc: Use image node_id 1 for calling a global function with example usage: hard_normalize(word) and returns: non_alpha_numeric