Update app.py

app.py

@@ -126,14 +126,14 @@ def rag(input_text, history, jezik):
         query_engine = index2.as_query_engine()
 #        return query_engine.query(input_text)
 #        return history.append({"role": "assistant", "content": query_engine.query(input_text)})
-        return history.append(
+        return [history.append(
             ChatMessage(role="user",
                         content=input_text
             ).append(
                         role="assistant",
                         content=query_engine.query(input_text)
             )
-        )
+        )]
 #        collection.add(
 #            documents=documents,
 #        ids=[f"id{last+i}" for i in range(len(documents))],
@@ -160,11 +160,11 @@ def rag(input_text, history, jezik):
 #        if (o_jezik!='N/A'):
 #            input_text += " - odgovori " + o_jezik + "."
 #        return query_engine.query(input_text)
-        return history.append(
+        return [history.append(
             ChatMessage(role="assistant",
                     content=chat_engine.chat(input_text)
             )
-        )
+        )]
 # Interface
 # gr.Textbox(label="Pitanje:", lines=6),
 # outputs=[gr.Textbox(label="Odgovor:", lines=6)],