|  | @@ -76,6 +76,10 @@ class CallOpBuffer;
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				|  |  |  class CompletionQueue;
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				|  |  |  class Server;
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				|  |  |  
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				|  |  | +namespace testing {
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				|  |  | +class InteropContextInspector;
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				|  |  | +}  // namespace testing
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				|  |  | +
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				|  |  |  // Interface of server side rpc context.
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				|  |  |  class ServerContext {
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				|  |  |   public:
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				|  | @@ -104,6 +108,7 @@ class ServerContext {
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				|  |  |    }
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				|  |  |  
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				|  |  |   private:
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				|  |  | +  friend class ::grpc::testing::InteropContextInspector;
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				|  |  |    friend class ::grpc::Server;
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				|  |  |    template <class W, class R>
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				|  |  |    friend class ::grpc::ServerAsyncReader;
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