typedef void (*EBookIdCallback) (EBook *book, EBookStatus status, const gchar *id, gpointer closure);
typedef void (*EBookContactCallback) (EBook *book, EBookStatus status, EContact *contact, gpointer closure);
typedef void (*EBookListCallback) (EBook *book, EBookStatus status, GList *list, gpointer closure);
typedef void (*EBookBookViewCallback) (EBook *book, EBookStatus status, EBookView *book_view, gpointer closure);
typedef void (*EBookEListCallback) (EBook *book, EBookStatus status, EList *list, gpointer closure);
typedef void (*EBookIdCallback) (EBook *book, EBookStatus status, const gchar *id, gpointer closure);
typedef void (*EBookContactCallback) (EBook *book, EBookStatus status, EContact *contact, gpointer closure);
typedef void (*EBookListCallback) (EBook *book, EBookStatus status, GList *list, gpointer closure);
typedef void (*EBookBookViewCallback) (EBook *book, EBookStatus status, EBookView *book_view, gpointer closure);
typedef void (*EBookEListCallback) (EBook *book, EBookStatus status, EList *list, gpointer closure);