# File lib/json-schema/uri/uuid.rb, line 105
                def create_random
                        rnd = [
                                rand(0x100000000),
                                rand(0x100000000),
                                rand(0x100000000),
                                rand(0x100000000),
                        ].pack "N4"
                        raw = mask 4, rnd
                        ret = new raw
                        ret.freeze
                        ret
                end