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diff --git a/tensorflow/contrib/lite/kernels/register.h b/tensorflow/contrib/lite/kernels/register.h
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+++ b/tensorflow/contrib/lite/kernels/register.h
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+/* Copyright 2017 The TensorFlow Authors. All Rights Reserved.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+==============================================================================*/
+#ifndef THIRD_PARTY_TENSORFLOW_CONTRIB_LITE_KERNELS_REGISTER_H_
+#define THIRD_PARTY_TENSORFLOW_CONTRIB_LITE_KERNELS_REGISTER_H_
+
+#include <unordered_map>
+#include "tensorflow/contrib/lite/context.h"
+#include "tensorflow/contrib/lite/model.h"
+
+namespace tflite {
+namespace ops {
+namespace builtin {
+
+class BuiltinOpResolver : public OpResolver {
+ public:
+  BuiltinOpResolver();
+  TfLiteRegistration* FindOp(tflite::BuiltinOperator op) const override;
+  TfLiteRegistration* FindOp(const char* op) const override;
+  void AddBuiltin(tflite::BuiltinOperator op, TfLiteRegistration* registration);
+  void AddCustom(const char* name, TfLiteRegistration* registration);
+
+ private:
+  struct BuiltinOperatorHasher {
+    size_t operator()(const tflite::BuiltinOperator& x) const {
+      return std::hash<size_t>()(static_cast<size_t>(x));
+    }
+  };
+  std::unordered_map<tflite::BuiltinOperator, TfLiteRegistration*,
+                     BuiltinOperatorHasher>
+      builtins_;
+  std::unordered_map<std::string, TfLiteRegistration*> custom_ops_;
+};
+
+}  // namespace builtin
+}  // namespace ops
+}  // namespace tflite
+
+#endif  // THIRD_PARTY_TENSORFLOW_CONTRIB_LITE_KERNELS_BUILTIN_KERNELS_H