diff --git a/cros/requisition_util.h b/cros/requisition_util.h
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+++ b/cros/requisition_util.h
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+//
+// Copyright (C) 2020 The Android Open Source Project
+//
+// 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 UPDATE_ENGINE_CROS_REQUISITION_UTIL_H_
+#define UPDATE_ENGINE_CROS_REQUISITION_UTIL_H_
+
+#include <string>
+
+#include <base/files/file_path.h>
+
+namespace chromeos_update_engine {
+
+// Checks the VPD and Local State for the device's requisition and returns it,
+// or an empty string if the device has no requisition.
+std::string ReadDeviceRequisition(const base::FilePath& local_state);
+
+}  // namespace chromeos_update_engine
+
+#endif  //  UPDATE_ENGINE_CROS_REQUISITION_UTIL_H_