import gradio as gr
import time

def greet(text):
    print('\n')
    print(text)
    print('start sleep')
    time.sleep(20)
    print('end sleep')
    print(text)
    return "echo " + text

with gr.Blocks() as demo:
    input_text = gr.Textbox()
    output_text = gr.Textbox()
    btn = gr.Button("Run")
    btn.click(fn=greet, inputs=input_text, outputs=output_text)

demo.launch()