Samples picks randomly `m` elements out of `n` elements in a data structure and places them in random order at indices [0,m-1], the swapping being implemented in place.

Shuffle permutes a data structure in place based on the provided `swap` function.

Uint returns a random uint.

Uint32 returns a random uint32.

Uint32n returns a random uint32 strictly less than `n`.

Uint64 returns a random uint64.

Uint64n returns a random uint64 strictly less than `n`.

Uintn returns a random uint strictly less than `n`.