+
+LY_DEFINE (ly_paper_book_header, "ly:paper-book-header",
+ 1, 0, 0, (SCM pb),
+ "Return the header definition (@code{\\header})"
+ " in @code{Paper_book} object @var{pb}.")
+{
+ LY_ASSERT_SMOB (Paper_book, pb, 1);
+ Paper_book *pbook = Paper_book::unsmob (pb);
+ return pbook->header_;
+}