Jetson Xavier AGX GPIO is not sending any signals

Question

I want to control the servo motor with Jetson GPIO PWM using python code. I installed this GPIO repo for Jetson using sudo pip install Jetson.GPIO. I am trying to check the GPIO Pin with the following code but it is not working. Any Idea how I can make it work

import Jetson.GPIO as GPIO
import time

 

GPIO.setmode(GPIO.BOARD)
GPIO.setwarnings(False)
channel = 15
GPIO.setup(channel, GPIO.OUT,initial=GPIO.HIGH)

 

while True:
    GPIO.output(channel, GPIO.LOW)
    time.sleep(1)
    
    GPIO.output(channel, GPIO.HIGH)
    time.sleep(1)

I checked it with a multimeter but it is not working. I checked other GPIO pins by changing the channel but still, it has no output. Any Idea how to use it in Python.

Regards