namespace Microsoft.AspNetCore.Http.Features
{
    [DebuggerDisplay("Count = {GetCount()}")]
    [DebuggerTypeProxy(typeof(FeatureCollectionDebugView))]
    [DefaultMember("Item")]
    public class FeatureCollection : IFeatureCollection, IEnumerable, IEnumerable<KeyValuePair<Type!, object!>>
    {
        public object? this[Type! key] { get; set; }
    }
}