tuple4<A, B, C, D> function
Generates quadruples of what first to fourth generate.
Implementation
Generator<(A, B, C, D)> tuple4<A, B, C, D>(
Generator<A> first,
Generator<B> second,
Generator<C> third,
Generator<D> fourth,
) => _Tuple4Generator<A, B, C, D>(first, second, third, fourth);