How to create query with IN?

[makorne]

Something like this test but with ["bar", "baz", "foo?bar"] ( with ? inside string)

#[test]
    fn it_builds_sql_with_in_clause() {
        fn t(arg: &[&str], expected: &str) {
            let mut sql = SqlBuilder::new("SELECT ?fields FROM test WHERE a IN ?");
            sql.bind_arg(arg);
            sql.bind_fields::<Row>();
            assert_eq!(sql.finish().unwrap(), expected);
        }

        const ARGS: &[&str] = &["bar", "baz", "foo?bar"];
        t(&ARGS[..0], r"SELECT `a`,`b` FROM test WHERE a IN []");
        t(&ARGS[..1], r"SELECT `a`,`b` FROM test WHERE a IN ['bar']");
        t(
            &ARGS[..2],
            r"SELECT `a`,`b` FROM test WHERE a IN ['bar','baz']",
        );
        t(
            ARGS,
            r"SELECT `a`,`b` FROM test WHERE a IN ['bar','baz','foo?bar']",
        );
    }

unbound query argument: ?
thread 'sql::test::it_builds_sql_with_in_clause' panicked at 'unbound query argument: ?', clickhouse.rs/src/sql/mod.rs:69:21
stack backtrace:
   0: std::panicking::begin_panic
             at /home/f/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/std/src/panicking.rs:519:12
   1: clickhouse::sql::SqlBuilder::finish
             at ./src/sql/mod.rs:69:21
   2: clickhouse::sql::test::it_builds_sql_with_in_clause::t
             at ./src/sql/mod.rs:116:24
   3: clickhouse::sql::test::it_builds_sql_with_in_clause
             at ./src/sql/mod.rs:126:9
   4: clickhouse::sql::test::it_builds_sql_with_in_clause::{{closure}}

[azhe403]

any solution about unbound query argument ?
escaping ? with \\ or \ seem not working for this issue