private static function get_course_id(): int {
		$post_type = get_post_type();
		$post_id   = get_the_ID() ?? 0;

		if ( 'lesson' === $post_type ) {
			$parent = llms_get_post_parent_course( $post_id );

			if ( $parent ) {
				$post_id = $parent->get( 'id' );
			} else {
				return 0;
			}
		}

		return $post_id;
	}