public static void Main(string[] args)
        {
            // Create new esl client with api token and base url
            EslClient client    = new EslClient(apiToken, baseUrl);
            PackageId packageId = new PackageId("GLK2xasqLvFe2wc4qwO5iTKyjx42");

            byte[] downloadedDocument = client.DownloadDocument(packageId, "testing");
            File.WriteAllBytes(Directory.GetCurrentDirectory() + "/downloaded.pdf", downloadedDocument);

            byte[] downloadedEvidence = client.DownloadEvidenceSummary(packageId);
            File.WriteAllBytes(Directory.GetCurrentDirectory() + "/evidence-summary.pdf", downloadedEvidence);

            byte[] downloadedZip = client.DownloadZippedDocuments(packageId);
            File.WriteAllBytes(Directory.GetCurrentDirectory() + "/package-documents.zip", downloadedZip);
        }