/**
  * Returns a composed {@link ThrowableBiByteToDoubleFunction} that first applies this function to
  * its input, and then applies the {@code after} function to the result. This method is just
  * convenience, to provide the ability to transform this primitive function to an operation
  * returning {@code double}.
  *
  * @param after The function to apply after this function is applied
  * @return A composed {@code ThrowableBiByteToDoubleFunction} that first applies this function to
  *     its input, and then applies the {@code after} function to the result.
  * @throws NullPointerException If given argument is {@code null}
  * @implSpec The input argument of this method is a able to return primitive values. In this case
  *     this is {@code double}.
  */
 @Nonnull
 default ThrowableBiByteToDoubleFunction<X> andThenToDouble(
     @Nonnull final ThrowableIntToDoubleFunction<? extends X> after) {
   Objects.requireNonNull(after);
   return (value1, value2) -> after.applyAsDoubleThrows(applyAsIntThrows(value1, value2));
 }
 /**
  * Returns a composed {@link ThrowableObjCharToDoubleFunction} that first applies this function to
  * its input, and then applies the {@code after} function to the result. This method is just
  * convenience, to provide the ability to transform this primitive function to an operation
  * returning {@code double}.
  *
  * @param after The function to apply after this function is applied
  * @return A composed {@code ThrowableObjCharToDoubleFunction} that first applies this function to
  *     its input, and then applies the {@code after} function to the result.
  * @throws NullPointerException If given argument is {@code null}
  * @implSpec The input argument of this method is a able to return primitive values. In this case
  *     this is {@code double}.
  */
 @Nonnull
 default ThrowableObjCharToDoubleFunction<T, X> andThenToDouble(
     @Nonnull final ThrowableIntToDoubleFunction<? extends X> after) {
   Objects.requireNonNull(after);
   return (t, value) -> after.applyAsDoubleThrows(applyAsIntThrows(t, value));
 }