Method get_bgm

src/script.rs:234–236

(&self, index: usize)

        self.pre_figures.take()
    }

    pub(crate) fn find_label(&self, name: &str) -> Option<&usize> {
        self.labels.get(name)
    }

    pub(crate) fn get_choice_label(&self, name: &str) -> Option<&Label> {