{"ast_node_type":"other","tokens":[{"end":54,"kind":"keyword","start":0,"text":"check!(Option<T>,"}]}
            check!(Option<T>, VAL3.checked_div(VAL3));
            check!(Option<T>, VAL1.checked_div(black_box(1) + VAL2));
            check!(Option<T>, VAL4.checked_div(black_box(2)));