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diff --git a/image/backends/backends.hh b/image/backends/backends.hh
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+++ b/image/backends/backends.hh
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+/*
+ * backends.hh - Horizon Image Creation backend table
+ * image, the image processing utilities for
+ * Project Horizon
+ *
+ * Copyright (c) 2020 Adélie Linux and contributors.  All rights reserved.
+ * This code is licensed under the AGPL 3.0 license, as noted in the
+ * LICENSE-code file in the root directory of this repository.
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+#pragma once
+
+#include <functional>
+#include <string>
+#include <vector>
+
+namespace Horizon {
+namespace Image {
+
+class BasicBackend;
+
+struct BackendDescriptor {
+    std::string type_code;
+    std::string description;
+    std::function<BasicBackend *(std::string, std::string)> creation_fn;
+};
+
+extern std::vector<BackendDescriptor> known_backends;
+
+}
+}