namespace Microsoft.Extensions.Caching.Memory
{
    public static class CacheExtensions
    {
        [AsyncStateMachine(typeof(<GetOrCreateAsync>d__11<?>))]
        public static Task<TItem>! GetOrCreateAsync<TItem>(this IMemoryCache! cache, object! key, Func<ICacheEntry!, Task<TItem>!>! factory, MemoryCacheEntryOptions? createOptions);
    }
}