src/models/Logger.php
public static function success($message, $groupIdentifier = null)
    {
        return static::log(self::TYPE_SUCCESS, $message, debug_backtrace(false, 2), $groupIdentifier);
    }
public static function success($message, $groupIdentifier = null)
    {
        return static::log(self::TYPE_SUCCESS, $message, debug_backtrace(false, 2), $groupIdentifier);
    }
public static function success ( $ message , $ groupIdentifier = null ) { return static :: log ( self :: TYPE_SUCCESS , $ message , debug_backtrace ( false , 2 ) , $ groupIdentifier ) ; }
Log a success message.

@param string $message The message to log for this current request event.
@param string $groupIdentifier If multiple logger events are in the same action and you want to seperate them, define an additional group identifier.
@return boolean
Log a success message .