func math/rand.Shuffle

2 uses

	math/rand (current package)
		rand.go#L481: func Shuffle(n int, swap func(i, j int)) { globalRand().Shuffle(n, swap) }

	github.com/refraction-networking/utls
		u_parrots.go#L2717: 		rand.Shuffle(len(exts), func(i, j int) {