ay "1 day". This funciton goes one step
	 * further to display two degrees of accuracy.
	 *
	 * Based on Crontrol::interval() function by Edward Dale: https://wordpress.org/plugins/wp-crontrol/
	 *
	 * @param int $interval A interval in seconds.
	 * @return string A human friendly string representation of the interval.
	 */
	public static function admin_notices() {
		_deprecated_function( __METHOD__, '2.0.0' );
	}

	/**
	 * Filter search queries to allow searching by Claim ID (i.e. post_password).
	 *
	 * @param string $orderby MySQL orderby string.
	 * @param WP_Query $query Instance of a WP_Query object
	 * @return string MySQL orderby string.
	 */
	public function custom_orderby( $orderby, $query ){
		_deprecated_function( __METHOD__, '2.0.0' );
	}

	/**
	 * Filter search queries to allow searching by Claim ID (i.e. post_password).
	 *
	 * @param string $search MySQL search string.
	 * @param WP_Query $query Instance of a WP_Query object
	 * @return string MySQL search string.
	 */
	public function search_post_password( $search, $query ) {
		_deprecated_function( __METHOD__, '2.0.0' );
	}

	/**
	 * Change messages when a scheduled action is updated.
	 *
	 * @param  array $messages
	 * @return array
	 */
	public function post_updated_messages( $messages ) {
		_deprecated_function( __METHOD__, '2.0.0' );
		return $messages;
	}
}