def serialized(self):
        to_ret = {}
        for group, requirements in self.items():
            to_ret[group] = [str(requirement) for requirement in requirements]
        return to_ret
def gpio_init(pin, output):
  try:
    with open(f"/sys/class/gpio/gpio{pin}/direction", 'wb') as f:
      f.write(b"out" if output else b"in")
  except Exception as e:
    print(f"Failed to set gpio {pin} direction: {e}")