from libpmux import *
import gpiod
import time


chip = gpiod.chip('/dev/gpiochip0')

led = chip.get_line(PL_IO.NUM_9)

config = gpiod.line_request()
config.request_type = gpiod.line_request.DIRECTION_OUTPUT
led.request(config)


while True:
    led.set_value(0)
    time.sleep(0.3)
    led.set_value(1)
    time.sleep(0.3)