Create Package from Template

Hi, I have a requirement where I have a template with placeholders for signers. I need to create a new package from this template and replace the signer Placeholders with actual signer info. I referred to the CreatePackageFromTemplateWithReplacingPlaceholderExample but the problem I face is that instead of replacing the existing placeholder it creates a new signer for the package. My requirement will have 2 or more signers so I have to loop through a MAP to get all the signer info. Here is a sample of my code:

public class CreatePackageFromTemplateController {
	Void PackageFromTemplate(Map templateData) {
		SignerBuilder signer;

		String successMessage;
		
		String tempIdString = templateData.getAt("templateId");	
		PackageId tempPackageId = new PackageId(tempIdString);
		
		
		EslClient dssEslClient(/*this will have my URL and API key*/);

		/*Create the Package.*/
		PackageBuilder packageFromTemplate = newPackageNamed(templateData.packageName);
		packageFromTemplate.withSenderInfo(SenderInfoBuilder.newSenderInfo(templateData.senderEmail));

		def signersArray = templateData.signers;

		for (int j = 0; j  signersArray.size(); j++) {
			
			signer = SignerBuilder.newSignerWithEmail(signersArray[j].getAt("signerEmail"))
					.withFirstName(signersArray[j].getAt("signerFirstName"))
					.withLastName(signersArray[j].getAt("signerLastName"))
					.replacing(new Placeholder(signersArray[j].getAt("placeHolder")));

			if ((templateData.containsKey(signersArray[j].getAt("noteToSigner")))||(StringUtils.isNotEmpty(signersArray[j].getAt("noteToSigner")))) {
				signer.withEmailMessage(signersArray[j].getAt("noteToSigner"));
			}
			packageFromTemplate.withSigner(signer);
		}

		try {
			/*The package attribute is set to the organization name using withAttributes() method*/
			DocumentPackage completePackage = packageFromTemplate
					.withSettings(DocumentPackageSettingsBuilder.newDocumentPackageSettings().withInPerson())
					.withAttributes(newDocumentPackageAttributes()
					.withAttribute("orgName", templateData.orgName)
					.build())
					.build();
			
			PackageId packageId = dssEslClient.getTemplateService().createPackageFromTemplate(tempPackageId, completePackage);
			successMessage = "Package created and available in the draft folder."

		}
		catch (Exception e) {
			printStackTrace();
		}
	}
}