Update app.py

app.py

@@ -43,7 +43,7 @@ def respond(
     print(system_message)
     
 #    retriever = vector_db.as_retriever(search_type="similarity_score_threshold", search_kwargs={"score_threshold": score, "k": 10})
-    retriever = vector_db.as_retriever(search_type="similarity_score", search_kwargs={"k": 10})
+    retriever = vector_db.as_retriever(search_type="similarity", search_kwargs={"k": 10})
 #    retriever = vector_db.as_retriever(search_type="mmr")
     documents = retriever.invoke(message)