namespace Microsoft.UI.Composition
{
    [ContractVersion(typeof(WindowsAppSDKContract), 65536U)]
    [DefaultMember("Item")]
    [ProjectedRuntimeClass(typeof(IDictionary<string, string>))]
    [WindowsRuntimeHelperType(typeof(InitialValueExpressionCollection))]
    [WindowsRuntimeType("Microsoft.UI")]
    public sealed class InitialValueExpressionCollection : CompositionObject, ICollection<KeyValuePair<string, string>>, IDictionary<string, string>, IEnumerable, IEnumerable<KeyValuePair<string, string>>, IEquatable<InitialValueExpressionCollection>, ICustomQueryInterface, IDynamicInterfaceCastable, IWinRTObject
    {
        public string this[string key] { get; set; }
    }
}