private static string GetMessageWithEnvelope(ref Message request)
        {
            var buffer = request.CreateBufferedCopy(Int32.MaxValue);
            request = buffer.CreateMessage();
            var msg = buffer.CreateMessage();
            var sb =
                new StringBuilder(
                    $"<?xml version=\"1.0\" encoding=\"utf-8\"?>{Environment.NewLine}<soap:Envelope                     xmlns:soap=\"http://schemas.xmlsoap.org/soap/envelope/\">{Environment.NewLine}"); //Dirty Hack To Add Envelope itself
            using (
                var xw = XmlWriter.Create(sb,
                    new XmlWriterSettings { Indent = true, Encoding = Encoding.UTF8, OmitXmlDeclaration = true }))
                msg.WriteBody(xw);

            sb.Append($"{Environment.NewLine}</soap:Envelope>"); //Dirty Hack To Add Envelope itself
            return sb.ToString();
        }