code: def fmt_filename(text):
      
      forbidden_char = ["\\", "/", ":", "*", "?", "|", "<", ">", '"']
      for char in forbidden_char:
          text = text.replace(char, "")
      return text
docs: File name formatter.
  
      Remove all file system forbidden char from text.
  
      **中文文档**
  
      移除文件系统中不允许的字符。