| 123456789101112 | // Copyright (c) Microsoft Open Technologies, Inc. All rights reserved. See License.txt in the project root for license information.namespace System.Reactive{    /// <summary>    /// Marks the program elements that are experimental. This class cannot be inherited.    /// </summary>    [Experimental, AttributeUsage(AttributeTargets.All, AllowMultiple=false, Inherited=true)]    public sealed class ExperimentalAttribute : Attribute    {    }}
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