fix bug

app.py

@@ -1,13 +1,15 @@
+import json
+
 import gradio as gr
 
-def greet(name):
+def cardify(content):
     res = {
-        "content": event["body"],
+        "content": content,
         "questions": ["what is life?", "hi?"],
         "answers": ["42", "hola!"]
     }
-    return res
+    return json.dumps(res)
     #"Hello " + name + "!!"
 
-iface = gr.Interface(fn=greet, inputs="text", outputs="text")
+iface = gr.Interface(fn=cardify, inputs="text", outputs="text")
 iface.launch()