# fetch(_:batchSize:) Returns a collection of typed models, in batches, which match the criteria of the specified fetch descriptor. ``` func fetch(_ descriptor: FetchDescriptor, batchSize: Int) throws -> FetchResultsCollection where T : PersistentModel ``` ## Parameters `descriptor` A fetch descriptor that provides the configuration for the fetch. `batchSize` The maximum number of models to include in each batch. ## Return Value The collection of typed models that satisfy the criteria of the fetch descriptor. If no models match the criteria, the collection is empty. ## Discussion As you access the models in the returned collection (either sequentially, or directly using subscripting), the context automatically fetches the necessary batches. --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)