{"ast_node_type":"other","tokens":[{"end":44,"kind":"keyword","start":0,"text":"assert_eq_pnsat!(\"%.6i\","}]}
    assert_eq_pnsat!("%.6i", Some("{:06}"));
    assert_eq_pnsat!("%-*.*s", None);
    assert_eq_pnsat!("%+i", Some("{:+}"));