app.py

import gradio as gr
import anvil.server

anvil.server.connect('55MH4EBKM22EP4E6D5T6CVSL-VGO5X4SM6JEXGJVT')

def greet(name):
    retval=anvil.server.call('server_function',name)
    return "Hello " + retval + "!!"

iface = gr.Interface(fn=greet, inputs="text", outputs="text")
iface.launch()