Optional ReadonlyttlOptional property name that stores the model's expiry as a Unix timestamp in minutes. Datastores can use this to prune expired records.
Optional ReadonlyuniqueValidator that there is only a single value in the datastore that has the properties given. Example: ["name", "text"] This will make sure that there can only be a single row in the database that has a unique combination of name and text.
ORM based configurations for a model.