dropLast16
fun <T1, T2> Tuple18<T1, T2, *, *, *, *, *, *, *, *, *, *, *, *, *, *, *, *>.dropLast16(): Tuple2<T1, T2>
fun <T1, T2, T3> Tuple19<T1, T2, T3, *, *, *, *, *, *, *, *, *, *, *, *, *, *, *, *>.dropLast16(): Tuple3<T1, T2, T3>
fun <T1, T2, T3, T4> Tuple20<T1, T2, T3, T4, *, *, *, *, *, *, *, *, *, *, *, *, *, *, *, *>.dropLast16(): Tuple4<T1, T2, T3, T4>