Test that we can import the Types namespace

test/package/browser/template/src/index.ts

@@ -1,13 +1,18 @@
-import { Realtime } from 'ably';
+import { Realtime, Types } from 'ably';
 import { createSandboxAblyAPIKey } from './sandbox';
 
+// This function exists to check that we can import the Types namespace and refer to its types.
+async function attachChannel(channel: Types.RealtimeChannel) {
+  await channel.attach();
+}
+
 globalThis.testAblyPackage = async function () {
   const key = await createSandboxAblyAPIKey();
 
   const realtime = new Realtime({ key, environment: 'sandbox' });
 
   const channel = realtime.channels.get('channel');
-  await channel.attach();
+  await attachChannel(channel);
 
   const receivedMessagePromise = new Promise<void>((resolve) => {
     channel.subscribe(() => {