Update app.py

app.py

@@ -119,8 +119,9 @@ def load_models_and_documents():
             cache_dir=os.getenv('HF_HOME')
         )
         
-        sparse_model = SpladeEmbeddingFunction(
-            
+        sparse_model = SpladeEncoder(
+            model_name='devve1/Splade_PP_en_v2_onnx',
+            device='cuda'
         )
 
         download_nltk_packages()