Firebase Docs Reference FirebaseRemoteConfig Framework Reference Type-Definitions The following type definitions are available globally. RemoteConfigFetchCompletion Completion handler invoked by fetch methods when they get a response from the server. Declaration Swift typealias RemoteConfigFetchCompletion = (RemoteConfigFetchStatus, Error?) -> Void Parameters status Config fetching status. error Error message on failure. Except as otherwise noted, the content of this page is licensed under the Creative Commons Attribution 3.0 License, and code samples are licensed under the Apache 2.0 License. For details, see our Site Policies. Java is a registered trademark of Oracle and/or its affiliates. Last updated June 20, 2018.