private void deleteTemplate(RestConnection connection, String templateId)
     throws SparkPostException {
   Response deleteResponse = ResourceTemplates.delete(connection, templateId);
   if (deleteResponse.getResponseCode() == 200) {
     System.out.println("\tdeleted: " + templateId);
   } else {
     System.out.println(
         "\tError: Failed to delete: "
             + templateId
             + ") because "
             + deleteResponse.getResponseMessage());
   }
 }