Keyczar.MutableKeySet.Save C# (CSharp) Method

        public bool Save(IKeySetWriter writer)
        {
            writer.Write(_metadata);

            if (!onlyMetaChanged || writer is INonSeparatedMetadataAndKey)
            {
                for (int i = 1; i <= _keys.Count; i++)
                {
                    var key = _keys[i];
                    writer.Write(key, i);
                }
            }
            return writer.Finish();
        }

        public override int Run(string[] remainingArguments)
        {
            using (var keySet = new MutableKeySet(_location))
            {
                var status = keySet.Demote(_version);
                if (status == null)
                {
                    Console.WriteLine("{0} {1}", Localized.MsgUnknownVersion, _version);
                    return -1;
                }
                try
                {
                    if (keySet.Save(new KeySetWriter(_location, overwrite: true)))
                    {
                        Console.WriteLine(Localized.MsgDemotedVersion, _version, status);
                        return 0;
                    }
                }
                catch
                {
                }
            }

            Console.WriteLine("{0} {1}", Localized.MsgCouldNotWrite, _location);
            return -1;
        }