namespace FileProvider
{
    public delegate void NSFileProviderPartialContentFetchingCompletionHandler(NSUrl! fileContents, INSFileProviderItem! item, NSRange retrievedRange, NSFileProviderMaterializationFlags flags, NSError! error);
    {
        public virtual IAsyncResult BeginInvoke(NSUrl! fileContents, INSFileProviderItem! item, NSRange retrievedRange, NSFileProviderMaterializationFlags flags, NSError! error, AsyncCallback callback, object object);
    }
}