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diff --git a/src/dynamic_fusion/sketch/gpu/GpuOperatorProperties.h b/src/dynamic_fusion/sketch/gpu/GpuOperatorProperties.h
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+/*
+ * Copyright (c) 2022 Arm Limited.
+ *
+ * SPDX-License-Identifier: MIT
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+#ifndef SRC_DYNAMIC_FUSION_SKETCH_GPU_GPUOPERATORPROPERTIES
+#define SRC_DYNAMIC_FUSION_SKETCH_GPU_GPUOPERATORPROPERTIES
+
+namespace arm_compute
+{
+namespace experimental
+{
+namespace dynamic_fusion
+{
+/** Contain properties common to all operator types */
+
+/** Operator type in the context of fusion
+ */
+enum class GpuOperatorType
+{
+    /** Simple operators are operators that:
+     *  1. Have a 1-to-1 mapping between the input elements and output elements, like elementwise
+     *  2. Have exactly 1 output
+     */
+    Simple,
+    /** Complex operators are operators that are not simple but are still fusable with simple ones
+     */
+    Complex,
+    /** Unfusable operators are operators that cannot be fused with any other types of operators
+     */
+    Unfusable
+};
+} // namespace dynamic_fusion
+} // namespace experimental
+} // namespace arm_compute
+#endif /* SRC_DYNAMIC_FUSION_SKETCH_GPU_GPUOPERATORPROPERTIES */