Update app.py

app.py

@@ -50,7 +50,9 @@ def invoke(openai_api_key, prompt, rag_option):
 
             result = completion["result"]
         elif (rag_option == RAG_LLAMAINDEX):
-            result = rag_retrieval(config, prompt)
+            #result = rag_retrieval(config, prompt)
+            rag = LlamaIndexRAG()
+            result = rag.rag_retrieval(config, prompt)
         else:
             completion, chain, callback = llm_chain(config, prompt)