Update async_get_entities.py

examples/async_get_entities.py

@@ -9,7 +9,7 @@
 
 async def main():
     # Initialize main object
-    client = Client(url, token)
+    client = Client(url, token, use_async=True)
     # Uses async context manager to ping the server and initialize caching.
     async with client:
         # All async methods are prefixed with `async_`.