Request metadata about a text or a collection

        :param objectId: Filter for some object identifier
        :param filters: Kwargs parameters. URN and Inv are available
        :return: GetCapabilities CTS API request response

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

        :param objectId: Filter for some object identifier
        :param filters: Kwargs parameters. URN and Inv are available
        :return: GetCapabilities CTS API request response
        """
        filters.update({"urn": objectId})
        return self.getCapabilities(**filters)