How to use the cbor2.compat.iteritems function in cbor2

def _find_encoder(self, obj_type):
        for type_, enc in list(iteritems(self._encoders)):
            if type(type_) is tuple:
                try:
                    modname, typename = type_
                except (TypeError, ValueError):
                    raise CBOREncodeValueError(
                        "invalid deferred encoder type {!r} (must be a "
                        "2-tuple of module name and type name, e.g. "
                        "('collections', 'defaultdict'))".format(type_))
                imported_type = getattr(modules.get(modname), typename, None)
                if imported_type is not None:
                    del self._encoders[type_]
                    self._encoders[imported_type] = enc
                    type_ = imported_type
                else:  # pragma: nocover
                    continue