--- /dev/null
+#ifndef SERIALIZABLE_H_
+#define SERIALIZABLE_H_
+
+#include <glib-object.h>
+#include "upkg.h"
+
+#define UPKG_TYPE_SERIALIZABLE (upkg_serializable_get_type())
+#define UPKG_SERIALIZABLE(obj) G_TYPE_CHECK_INSTANCE_CAST(obj, \
+ UPKG_TYPE_SERIALIZABLE, UPkgSerializable)
+#define UPKG_IS_SERIALIZABLE(obj) G_TYPE_CHECK_INSTANCE_TYPE(obj, \
+ UPKG_TYPE_SERIALIZABLE)
+#define UPKG_SERIALIZABLE_GET_INTERFACE(inst) G_TYPE_INSTANCE_GET_INTERFACE \
+ (inst, UPKG_TYPE_SERIALIZABLE, UPkgSerializable)
+
+typedef struct UPkgSerializable UPkgSerializable;
+
+struct UPkgSerializable {
+ GTypeInterface parent;
+
+ int (*deserialize)(GObject *obj, struct upkg_file *f);
+};
+
+GType upkg_serializable_get_type(void);
+int upkg_deserialize(GObject *obj, struct upkg_file *f);
+
+#endif