{"ast_node_type":"other","tokens":[{"end":47,"kind":"keyword","start":0,"text":"assert_eq!(127i8.checked_mul(127i8),"}]}
    assert_eq!(127i8.checked_mul(127i8), None);
    assert_eq!(1i8.checked_mul(127i8), Some(127i8));
    assert_eq!((-1i8).checked_mul(-127i8), Some(127i8));