def _translate(self, options):
        """
        Perform translation of feed options passed in as keyword
        arguments to CouchDB/Cloudant equivalent.
        """
        translation = dict()
        for key, val in iteritems_(options):
            self._validate(key, val, feed_arg_types(self._source))
            try:
                if isinstance(val, STRTYPE):
                    translation[key] = val
                elif not isinstance(val, NONETYPE):
                    arg_converter = TYPE_CONVERTERS.get(type(val), json.dumps)
                    translation[key] = arg_converter(val)
            except Exception as ex:
                raise CloudantArgumentError(115, key, ex)
        return translation
Perform translation of feed options passed in as keyword
        arguments to CouchDB/Cloudant equivalent.