{"ast_node_type":"other","tokens":[{"end":37,"kind":"keyword","start":0,"text":"assert_pns_eq_sub!(\"%1$*2$.*3$d\","}]}
    assert_pns_eq_sub!("%1$*2$.*3$d",
        { Some(2), "", None, Some(N::Arg(3)), None, "d", (0, 8), });
        { Some(1), "", Some(N::Arg(2)), Some(N::Arg(3)), None, "d", (0, 11), });