code: def tokenize_line(line, embed_bytes=False):
      line = SPACE_NORMALIZER.sub(" ", line)
      line = line.strip()
      return line.split()
  
imports: import os
  import re
  from typing import Dict, List, Optional, Set
  from fairseq.data import dictionary
  from fairseq.file_io import PathManager
  from pytorch_translate import vocab_constants
label_desc: Use image node_id 3 for calling a global function with example usage: tokenize_line(line, embed_bytes) and returns: line