Function sample

include/fplus/transform.hpp:201–205

// Example call: sample(std::random_device()(), 3, xs);
template <typename Container>
Container sample(std::uint_fast32_t seed, std::size_t n, const Container& xs)
{
    assert(n <= size_of_cont(xs));
    return get_segment(0, n, shuffle(seed, xs));
}

// API search type: random_element : (Int, [a]) -> a
// fwd bind count: 1