Update app.py

app.py

@@ -1,7 +1,10 @@
 import gradio as gr
 
-def greet(name):
+import tensorflow as tf
+from transformers import GPT2LMHeadModel, GPT2Tokenizer
+
+def output(prompt):
     return "Hello " + name + "!!"
 
-iface = gr.Interface(fn=greet, inputs="text", outputs="text")
+iface = gr.Interface(fn=output, inputs="text", outputs="text")
 iface.launch()