app.py

import gradio as gr
import spaces


@spaces.GPU(duration=181)
def inner_fn():
    return "test"


def wrapper_fn():
    return inner_fn()


wrapper_fn.zerogpu = True


with gr.Blocks() as demo:
    btn = gr.Button()
    out = gr.Textbox()
    btn.click(fn=wrapper_fn, outputs=out)
demo.launch()