feat(editor): Add pre-built agents experiment (#18124)

packages/nodes-base/nodes/Google/Calendar/GoogleCalendar.node.ts

@@ -9,6 +9,7 @@ import type {
 	INodeTypeDescription,
 	JsonObject,
 	NodeExecutionHint,
+	INodeProperties,
 } from 'n8n-workflow';
 import { NodeConnectionTypes, NodeApiError, NodeOperationError } from 'n8n-workflow';
 import { v4 as uuid } from 'uuid';
@@ -31,6 +32,22 @@ import {
 } from './GenericFunctions';
 import { sortItemKeysByPriorityList } from '../../../utils/utilities';
 
+const preBuiltAgentsCallout: INodeProperties = {
+	// eslint-disable-next-line n8n-nodes-base/node-param-display-name-miscased
+	displayName: 'Interact with your Google Calendar using our pre-built',
+	name: 'preBuiltAgentsCalloutGoogleCalendar',
+	type: 'callout',
+	typeOptions: {
+		calloutAction: {
+			label: 'Voice assistant agent',
+			icon: 'bot',
+			type: 'openSampleWorkflowTemplate',
+			templateId: 'voice_assistant_agent_with_telegram_and_gcal',
+		},
+	},
+	default: '',
+};
+
 export class GoogleCalendar implements INodeType {
 	description: INodeTypeDescription = {
 		displayName: 'Google Calendar',
@@ -53,6 +70,7 @@ export class GoogleCalendar implements INodeType {
 			},
 		],
 		properties: [
+			preBuiltAgentsCallout,
 			{
 				displayName: 'Resource',
 				name: 'resource',