Event loop close

app.py

@@ -84,9 +84,20 @@ def generate_synthetic_dataset(
     else:
         return "Invalid dataset type"
 
-    dataset = asyncio.run(generator.agenerate_dataset())
-    dataset.save_dataset(hf_repo_name=hf_repo_name)
-    return "Dataset generated and saved successfully."
+    async def generate():
+        dataset = await generator.agenerate_dataset()
+        dataset.save_dataset(hf_repo_name=hf_repo_name)
+        return "Dataset generated and saved successfully."
+
+    try:
+        return asyncio.run(generate())
+    except RuntimeError as e:
+        if str(e) == "Event loop is closed":
+            loop = asyncio.new_event_loop()
+            asyncio.set_event_loop(loop)
+            return loop.run_until_complete(generate())
+        else:
+            raise
 
 def ui_main():
     """