`data` longtext NOT NULL,
  `expires` BIGINT unsigned NOT NULL,
  PRIMARY KEY (`id`),
  UNIQUE KEY `session_key` (`session_key`)
) $collate;
";

		/**
		 * Filter the database table schema.
		 *
		 * @since 3.34.0
		 *
		 * @param string $tables  A semi-colon (`;`) separated list of database table creating commands.
		 * @param string $collate Database collation statement.
		 */
		return apply_filters( 'llms_install_get_schema', $tables, $collate );

	}

	/**
	 * Initializes the bg updater class
	 *
	 * @since 3.4.3
	 * @since 3.6.0 Unknown.
	 * @since 5.2.0 Use `LLMS_PLUGIN_DIR` to include required class file.
	 * @since 6.0.0 Removed loading of class files that don't instantiate their class in favor of autoloading.
	 *
	 * @return void
	 */
	public static function init_background_updater() {

		self::$background_updater = new LLMS_Background_Updater();
	}

	/**
	 * Core install function
	 *
	 * @since 1.0.0
	 * @since 3.13.0 Unknown.
	 * @since 5.0.0 Install forms.
	 * @since 5.2.0 Moved DB update logic to LLMS_Install::run_db_updates().
	 *
	 * @return void
	 */
	public static function install() {

		if ( ! is_blog_installed() ) {
			return;
		}

		/**
		 * Action run immediately prior to LLMS_Install::install() routine.