Add return statement

app.py

@@ -38,7 +38,7 @@ shakespeare_qa = RetrievalQA.from_chain_type(llm=llm, chain_type="stuff", retrie
 
 
 def query(query):
-    shakespeare_qa.run(query)
+    return shakespeare_qa.run(query)
 
 iface = gr.Interface(fn=query, inputs="text", outputs="text")
 iface.launch()