code: def with_id_processor(cls, *args):
          
          ip = IdentifierProcessor()
          g = cls(ip, *args)
          ip.nonstring_processor = lambda _, substitution: \
              g._process_nonstrings(substitution)
          return g
docs: Returns a new instance with the processor set to a new instance 
          of :class:`IdentifierProcessor`, appropriately initialized to process
          non-strings appropriately.