app.py

import gradio as gr

def calculate_bmi(height, weight):
    bmi = weight / (height * height)
    return bmi

iface = gr.Interface(
  fn=calculate_bmi, 
  inputs=["number", "number"], 
  outputs="number",
  examples=[
    [1.7, 70],
    [1.8, 75],
  ])

iface.launch()