from machine import Pin

button_1 = Pin(15, Pin.IN, Pin.PULL_UP)
led_1 = Pin(14, Pin.OUT, Pin.PULL_UP)


def is_button_pressed(pin):
    # TODO: Replace below implementation with 
    # button debouncing
    return pin.value() == 0

while True:
    if is_button_pressed(button_1):
        led_1.toggle()