private static async Task <string> FormatContentStringAsync(HttpPipelineRequestContent requestContent, Encoding encoding, CancellationToken cancellationToken)
        {
            using (var memoryStream = new MemoryStream())
            {
                await requestContent.WriteToAsync(memoryStream, cancellation : cancellationToken).ConfigureAwait(false);

                return(encoding.GetString(FormatContent(memoryStream.ToArray())));
            }
        }