namespace Microsoft.Data.OData
{
    [DefaultMember("Item")]
    [Obsolete("The InstanceAnnotationCollection class is deprecated, use the InstanceAnnotations property on objects that support instance annotations instead.")]
    public sealed class InstanceAnnotationCollection : IEnumerable, IEnumerable<KeyValuePair<string, ODataValue>>
    {
        public bool ContainsKey(string key);
    }
}