public string EncodeBase64Url() => Base64Url.Encode(_guid.ToByteArray());
public Guid DecodeBase64Url() => new Guid(Base64Url.Decode(_guid_b64u));
public GuidSerializeBenchmark() { _guid = Guid.NewGuid(); _guid_str = _guid.ToString(); _guid_b64u = Base64Url.Encode(_guid.ToByteArray()); }