ds is not global, comment on globals

app.py

@@ -24,7 +24,8 @@ sets = {
 }
 
 def open_dataset(dataset, set_name, split, batch_size, shard = -1):
-    global dsi, ds
+    # I should really move dsi to a gr.State
+    global dsi
 
     if shard == -1:
         data_files = None