{"ast_node_type":"other","tokens":[{"end":28,"kind":"keyword","start":0,"text":"assert_pns_eq_sub!(\"%c\","}]}
    assert_pns_eq_sub!("%c",
        { None, "", None, None, None, "!", (0, 2), });
        { None, "", None, None, None, "c", (0, 2), });