public async Task <IActionResult> GetByteArray()
        {
            var data = new TestData
            {
                Text   = "This is not a test",
                Number = 12345678
            };

            var pdf = await _generatePdf.GetByteArrayViewInHtml(htmlView, data);

            var pdfStream = new System.IO.MemoryStream();

            pdfStream.Write(pdf, 0, pdf.Length);
            pdfStream.Position = 0;
            return(new FileStreamResult(pdfStream, "application/pdf"));
        }