app.py

import gradio as gr


def make_visible():
    return gr.Radio(["a", "b"], visible=True), gr.Dataframe(visible=True)


with gr.Blocks() as demo:
    btn = gr.Button("Show")
    radio = gr.Radio(["a", "b"], visible=False)
    dataframe = gr.Dataframe(visible=False)

    btn.click(
        fn=make_visible,
        outputs=[radio, dataframe],
    )

demo.launch()