dropLast17
fun <T1, T2> Tuple19<T1, T2, *, *, *, *, *, *, *, *, *, *, *, *, *, *, *, *, *>.dropLast17(): Tuple2<T1, T2>
fun <T1, T2, T3> Tuple20<T1, T2, T3, *, *, *, *, *, *, *, *, *, *, *, *, *, *, *, *, *>.dropLast17(): Tuple3<T1, T2, T3>