import gradio as gr
import time

def echo(message, history, system_prompt, tokens):
    response = f"System prompt: {system_prompt}\n Message: {message}."
    for i in range(min(len(response), int(tokens))):
        time.sleep(0.05)
        yield response[: i+1]

demo = gr.ChatInterface(echo, 
                        additional_inputs=[
                            gr.Textbox("You are helpful AI.", label="System Prompt"), 
                            gr.Slider(10, 100)
                        ]
                       )

if __name__ == "__main__":
    demo.queue().launch()