(SCM paper_score),
"Return vector of paper_system objects from @var{paper-score}.")
{
- LY_ASSERT_FIRST_TYPE (unsmob_paper_score, paper_score);
+ LY_ASSERT_TYPE (unsmob_paper_score, paper_score, 1);
Paper_score *pscore = dynamic_cast<Paper_score *> (unsmob_music_output (paper_score));
return pscore->get_paper_systems ();