Publishing a Video to Instagram

The publish_video method publishes a video to Instagram.

Example:

try:
    from sage_meta.services.base import FacebookClient

    ACCESS_TOKEN = "YOUR_ACCESS_TOKEN"
    fb_client = FacebookClient(access_token=ACCESS_TOKEN)
    fb_client.account_handler.get_accounts()
    publish_response = fb_client.content_publisher.publish_video(
        video_url="https://example.com/video.mp4",
        caption="This is an example caption."
    )
    print(publish_response)
except Exception as e:
    logging.critical("An error occurred: %s", e)

Explanation: - The publish_video method publishes a video to Instagram using the provided video URL and caption. - If the operation fails, it raises an appropriate error.