FileFetcher typedef Null safety

FileFetcher = Future<FileFetcherResponse> Function(String url, {Map<String, String>? headers})

Flutter Cache Manager Copyright (c) 2019 Rene Floor Released under MIT License. Deprecated FileFetcher function

Implementation

/// Deprecated FileFetcher function
typedef Future<FileFetcherResponse> FileFetcher(String url,
    {Map<String, String>? headers});