Added to the websockets_api_example.py to show how to decode latent previews from the binary stream (#5016)

* Update websockets_api_example.py

* even more simplfied

script_examples/websockets_api_example.py

@@ -38,6 +38,9 @@ def get_images(ws, prompt):
                 if data['node'] is None and data['prompt_id'] == prompt_id:
                     break #Execution is done
         else:
+            # If you want to be able to decode the binary stream for latent previews, here is how you can do it:
+            # bytesIO = BytesIO(out[8:])
+            # preview_image = Image.open(bytesIO) # This is your preview in PIL image format, store it in a global
             continue #previews are binary data
 
     history = get_history(prompt_id)[prompt_id]