def url_decode(s, charset='utf-8', decode_keys=False, include_empty=True, errors='replace', separator='&', cls=None):
 if (cls is None):
  cls = MultiDict
 if (isinstance(s, text_type) and (not isinstance(separator, text_type))):
  separator = separator.decode((charset or 'ascii'))
 elif (isinstance(s, bytes) and (not isinstance(separator, bytes))):
  separator = separator.encode((charset or 'ascii'))
 return cls(_url_decode_impl(s.split(separator), charset, decode_keys, include_empty, errors))

def url_decode ( s , charset = 'utf-8' , decode_keys = False , include_empty = True , errors = 'replace' , separator = '&' , cls = None ) : if ( cls is None ) : cls = MultiDict if ( isinstance ( s , text_type ) and ( not isinstance ( separator , text_type ) ) ) : separator = separator . decode ( ( charset or 'ascii' ) ) elif ( isinstance ( s , bytes ) and ( not isinstance ( separator , bytes ) ) ) : separator = separator . encode ( ( charset or 'ascii' ) ) return cls ( _url_decode_impl ( s . split ( separator ) , charset , decode_keys , include_empty , errors ) )
parse a querystring and return it as :class:multidict .