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diff --git a/src/wallet/salvage.h b/src/wallet/salvage.h
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+// Copyright (c) 2009-2010 Satoshi Nakamoto
+// Copyright (c) 2009-2020 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
+// file COPYING or http://www.opensource.org/licenses/mit-license.php.
+
+#ifndef BITCOIN_WALLET_SALVAGE_H
+#define BITCOIN_WALLET_SALVAGE_H
+
+#include <fs.h>
+#include <streams.h>
+
+bool RecoverDatabaseFile(const fs::path& file_path, void *callbackDataIn, bool (*recoverKVcallback)(void* callbackData, CDataStream ssKey, CDataStream ssValue), std::string& out_backup_filename);
+
+/* Recover filter (used as callback), will only let keys (cryptographical keys) as KV/key-type pass through */
+bool RecoverKeysOnlyFilter(void *callbackData, CDataStream ssKey, CDataStream ssValue);
+
+#endif // BITCOIN_WALLET_SALVAGE_H