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// ==++==
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
// ==--==
/*============================================================
**
** Class: IObserver<T>
**
** <OWNER>kimhamil</OWNER>
**
**
** Purpose: Interface for exposing an Observer in the
** Observer pattern
**
**
===========================================================*/
using System;
namespace System
{
public interface IObserver<in T>
{
void OnNext(T value);
void OnError(Exception error);
void OnCompleted();
}
}