code: def sanitize(s,
               normalize_whitespace=True,
               normalize_unicode=True,
               form='NFKC',
               enforce_encoding=True,
               encoding='utf-8'):
      
  
      if enforce_encoding:
          s = s.encode(encoding, errors='ignore').decode(encoding, errors='ignore')
  
      if normalize_unicode:
          s = unicodedata.normalize(form, s)
  
      if normalize_whitespace:
          s = re.sub(r'\s+', ' ', s).strip()
  
      return s
docs: Normalize a string
  
      Args:
          s (unicode string): input unicode string
          normalize_whitespace (bool): if True, normalize all whitespace to single spaces (including newlines),
                                       strip whitespace at start/end
          normalize_unicode (bool): if True, normalize unicode form to 'form'
          form (str): unicode form
          enforce_encoding (bool): if True, encode string to target encoding and re-decode, ignoring errors
                                   and stripping all characters not part of the encoding
          encoding (str): target encoding for the above
  
      Returns:
          str: unicode output string