/**
* Returns a composed function that first applies this CheckedFunction6 to the given argument and
* then applies {@linkplain CheckedFunction1} {@code after} to the result.
*
* @param <V> return type of after
* @param after the function applied after this
* @return a function composed of this and after
* @throws NullPointerException if after is null
*/
default <V> CheckedFunction6<T1, T2, T3, T4, T5, T6, V> andThen(
CheckedFunction1<? super R, ? extends V> after) {
Objects.requireNonNull(after, "after is null");
return (t1, t2, t3, t4, t5, t6) -> after.apply(apply(t1, t2, t3, t4, t5, t6));
}
/**
* Returns a composed function that first applies this CheckedFunction2 to the given argument and
* then applies {@linkplain CheckedFunction1} {@code after} to the result.
*
* @param <V> return type of after
* @param after the function applied after this
* @return a function composed of this and after
* @throws NullPointerException if after is null
*/
default <V> CheckedFunction2<T1, T2, V> andThen(CheckedFunction1<? super R, ? extends V> after) {
Objects.requireNonNull(after, "after is null");
return (t1, t2) -> after.apply(apply(t1, t2));
}