Updated to not use a private variable

app/content/newsletter-automatic.md

@@ -12,6 +12,16 @@ intervention, if there is an available prompt for the current user.
 
 
 ```javascript
+// Example library for storing email signups
+import {NewsletterPersistence} from './newsletter-persistence.js';
+const newsletterCache = new NewsletterPersistence();
+
+// Sample newsletter configuration created by the publisher
+const publisherConfiguration = {
+  name: 'Subscriber Newsletter',
+  configurationId: '49c12712-9750-4571-8c67-96722561c13a',
+};
+
 (self.SWG = self.SWG || []).push(async (subscriptions) => {
   // Configure the events logger
   const eventManager = await subscriptions.getEventManager();
@@ -24,8 +34,8 @@ intervention, if there is an available prompt for the current user.
   console.log({availableInterventions});
 
   // Return the prompt, if available, for the current configurationId
-  const prompt = availableInterventions.find(({intervention}) => {
-    return intervention.configurationId === configurationId;
+  const prompt = availableInterventions.find(({configurationId}) => {
+    return configurationId === publisherConfiguration.configurationId;
   });
 
   // Show the prompt, if available