{"ast_node_type":"other","tokens":[{"end":47,"kind":"keyword","start":0,"text":"assert_eq!(255u8.checked_mul(255u8),"}]}
    assert_eq!(255u8.checked_mul(255u8), None);
    assert_eq!(1u8.checked_mul(255u8), Some(255u8));
    assert_eq!(1i8.checked_mul(127i8), Some(127i8));