ination' => [
				'showing' => count( $entries ),
				'total'   => $total
			]
		];

		// Set a high expiration date so we still have the cache for static sitemaps.
		aioseo()->core->cache->update( 'aioseo_sitemap_' . $fileName, $data, MONTH_IN_SECONDS );
	}

	/**
	 * Retrieve the data to use on the XSL.
	 *
	 * @since 4.2.1
	 *
	 * @param  string $fileName The sitemap file name.
	 * @return array            The XSL data for the given file name.
	 */
	public function getXslData( $fileName ) {
		return aioseo()->core->cache->get( 'aioseo_sitemap_' . $fileName );
	}
}