Int returns a non-negative pseudo-random int.

Int63nRange generates an int64 integer in range [min,max).

Intn generates an integer in range [0,max).

IntnRange generates an integer in range [min,max).

Perm returns, as a slice of n ints, a pseudo-random permutation of the integers [0,n) from the default Source.

SafeEncodeString encodes s using the same characters as rand.String.

Seed seeds the rng with the provided seed.