override public void Execute()
        {
            package1 = PackageBuilder.NewPackageNamed("ProxyConfigurationExample1: " + DateTime.Now)
                       .DescribedAs("This is a new package1")
                       .WithSigner(SignerBuilder.NewSignerWithEmail(email1)
                                   .WithCustomId("signer1")
                                   .WithFirstName("John")
                                   .WithLastName("Smith"))
                       .WithDocument(DocumentBuilder.NewDocumentNamed("My Document1")
                                     .FromStream(fileStream1, DocumentType.PDF)
                                     .WithSignature(SignatureBuilder.SignatureFor(email1)
                                                    .OnPage(0)
                                                    .AtPosition(100, 100)))
                       .Build();

            packageId1 = eslClientWithHttpProxy.CreateAndSendPackage(package1);
            eslClientWithHttpProxy.SignDocuments(packageId1);
            eslClientWithHttpProxy.SignDocuments(packageId1, "signer1");

            package2 = PackageBuilder.NewPackageNamed("ProxyConfigurationExample2: " + DateTime.Now)
                       .DescribedAs("This is a new package2")
                       .WithSigner(SignerBuilder.NewSignerWithEmail(email1)
                                   .WithCustomId("signer2")
                                   .WithFirstName("John")
                                   .WithLastName("Smith"))
                       .WithDocument(DocumentBuilder.NewDocumentNamed("My Document2")
                                     .FromStream(fileStream2, DocumentType.PDF)
                                     .WithSignature(SignatureBuilder.SignatureFor(email1)
                                                    .OnPage(0)
                                                    .AtPosition(100, 100)))
                       .Build();

            packageId2 = eslClientWithHttpProxyHasCredentials.CreateAndSendPackage(package2);
            eslClientWithHttpProxyHasCredentials.SignDocuments(packageId2);
            eslClientWithHttpProxyHasCredentials.SignDocuments(packageId2, "signer2");
        }