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diff --git a/src/armnn/layers/StandInLayer.hpp b/src/armnn/layers/StandInLayer.hpp
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+//
+// Copyright © 2019 Arm Ltd. All rights reserved.
+// SPDX-License-Identifier: MIT
+//
+
+#pragma once
+
+#include "LayerWithParameters.hpp"
+
+namespace armnn
+{
+
+/// This layer represents an unknown operation in the input graph.
+class StandInLayer : public LayerWithParameters<StandInDescriptor>
+{
+public:
+    /// Empty implementation explictly does NOT create a workload. Throws Exception if called.
+    /// @param [in] graph The graph where this layer can be found.
+    /// @param [in] factory The workload factory which will create the workload.
+    /// @return Does not return anything. Throws Exception if called.
+    virtual std::unique_ptr<IWorkload>CreateWorkload(const Graph& graph,
+                                                     const IWorkloadFactory& factory) const override;
+
+    /// Creates a dynamically-allocated copy of this layer.
+    /// @param [in] graph The graph into which this layer is being cloned.
+    StandInLayer* Clone(Graph& graph) const override;
+
+    /// Check if the input tensor shape(s)
+    /// Does nothing since cannot validate any properties of this layer.
+    void ValidateTensorShapesFromInputs() override;
+
+    /// Empty implementation that throws Exception if called.
+    /// otherwise infers the output shapes from given input shapes and layer properties.
+    /// @param [in] inputShapes The input shapes layer has.
+    /// @return Does not return anything. Throws Exception if called.
+    std::vector<TensorShape> InferOutputShapes(const std::vector<TensorShape>& inputShapes) const override;
+
+    /// Accepts a visitor object and calls VisitStandInLayer() method.
+    /// @param visitor The visitor on which to call VisitStandInLayer() method.
+    void Accept(ILayerVisitor& visitor) const override;
+
+protected:
+    /// Constructor to create a StandInLayer.
+    /// @param [in] param StandInDescriptor to configure the stand-in operation.
+    /// @param [in] name Optional name for the layer.
+    StandInLayer(const StandInDescriptor& param, const char* name);
+
+    /// Default destructor
+    ~StandInLayer() = default;
+};
+
+} //namespace armnn
+
+
+
+