code: def getMetadata(self, objectId=None, **filters):
          
          return self.get_or(
              _cache_key("Nautilus", self.name, "GetMetadata", objectId),
              super(ProtoNautilusCtsResolver, self).getMetadata, objectId
          )
docs: 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