app.py

import gradio as gr

def greet(inp):
    return "Hello " + inp + "!"
    
with gr.Blocks() as demo:
    with gr.Row():
        with gr.Column(scale=2):
            text1 = gr.Textbox(lines=7, label="Prompt", scale=2)
            with gr.Row():
                btn1 = gr.Button("Submit", scale=1)
                btn2 = gr.Button("Clear", scale=1)
                btn3 = gr.Button("Clean Memory", scale=2)
        with gr.Column(scale=2):
            out_text = gr.Text(lines=15, label="Output", scale=2)
    btn1.click(fn=greet, inputs=text1, outputs=out_text)
    btn2.click(lambda: [None, None], outputs=[text1, out_text])
demo.launch()