protected function zone_methods_screen( $zone_id ) {
		if ( 'new' === $zone_id ) {
			$zone = new WC_Shipping_Zone();
		} else {
			$zone = WC_Shipping_Zones::get_zone( absint( $zone_id ) );
		}

		if ( ! $zone ) {
			wp_die( esc_html__( 'Zone does not exist!', 'woocommerce' ) );
		}

		$allowed_countries   = WC()->countries->get_shipping_countries();
		$shipping_continents = WC()->countries->get_shipping_continents();

		// Prepare locations.
		$locations = array();
		$postcodes = array();

		foreach ( $zone->get_zone_locations() as $location ) {
			if ( 'postcode' === $location->type ) {
				$postcodes[] = $location->code;
			} else {
				$locations[] = $location->type . ':' . $location->code;
			}
		}

		wp_localize_script(
			'wc-shipping-zone-methods',
			'shippingZoneMethodsLocalizeScript',
			array(
				'methods'                 => $zone->get_shipping_methods( false, 'json' ),
				'zone_name'               => $zone->get_zone_name(),
				'zone_id'                 => $zone->get_id(),
				'wc_shipping_zones_nonce' => wp_create_nonce( 'wc_shipping_zones_nonce' ),
				'strings'                 => array(
					'unload_confirmation_msg' => __( 'Your changed data will be lost if you leave this page without saving.', 'woocommerce' ),
					'save_changes_prompt'     => __( 'Do you wish to save your changes first? Your changed data will be discarded if you choose to cancel.', 'woocommerce' ),
					'save_failed'             => __( 'Your changes were not saved. Please retry.', 'woocommerce' ),
					'add_method_failed'       => __( 'Shipping method could not be added. Please retry.', 'woocommerce' ),
					'yes'                     => __( 'Yes', 'woocommerce' ),
					'no'                      => __( 'No', 'woocommerce' ),
					'default_zone_name'       => __( 'Zone', 'woocommerce' ),
				),
			)
		);
		wp_enqueue_script( 'wc-shipping-zone-methods' );

		include_once dirname( __FILE__ ) . '/views/html-admin-page-shipping-zone-methods.php';
	}