method_settings );

		return $instance_id;
	}

	/**
	 * @param int $zone_id .
	 *
	 * @return string
	 */
	private function get_redirect_url_success_convert( int $zone_id ): string {
		return add_query_arg(
			[
				'page'      => 'wc-settings',
				'tab'       => 'shipping',
				'converted' => '1',
				'zone_id'   => $zone_id,
			],
			admin_url( 'admin.php' )
		);
	}
}