return
}

// Copied from https://github.com/envoyproxy/envoy/blob/5451efd9b8f8a444431197050e45ba974ed4e9d8/source/common/common/utility.cc#L601-L615
// to ensure we 100% match Envoy's implementation
func isPrime(x uint64) bool {
	if x != 0 && x < 4 {
		return true // eliminates special-casing 2.
	} else if (x & 1) == 0 {
		return false // eliminates even numbers >2.
	}