import gradio as gr

demo = gr.Blocks()

def dummy(tb, sl):
  tbo = tb + " " + " "+ str(sl)
  num = sl
  print(tb + " " + " "+ str(sl))
  cb = ['usa', 'japan', ]
  if sl > 50:
    raise gr.Error("This is not allowed!!!!!!!")
  return tbo, num, cb

with demo:
  tb = gr.Textbox() 
  sl = gr.Slider(minimum=1, maximum=100, step=5, info="hhe hhah kki ko")
  b1 = gr.Button('button')
  tbo = gr.Textbox()
  num = gr.Number() 
  cb = gr.CheckboxGroup(label = "countries", choices= ["india", "usa", "japan"], value="usa")
  b1.click(dummy, [tb, sl], [tbo, num, cb] )

  examples = gr.Examples([["dd", 1], ["ggg", 4], ["kjkjk", 6]],
                         [tb, sl],
                         [tbo, num, cb],
                         dummy, cache_examples=True)

demo.launch()