def getMetadata(self, objectId=None, **filters):
        """ Request metadata about a text or a collection

        :param objectId: Object Identifier to filter on
        :type objectId: str
        :param filters: Kwargs parameters.
        :type filters: dict
        :return: Collection
        """
        return self.get_or(
            _cache_key("Nautilus", self.name, "GetMetadata", objectId),
            super(ProtoNautilusCtsResolver, self).getMetadata, objectId
        )