public function formatMessage($level, string $message, array $context = array()):string
    {

        $dateTime = new \DateTime();
        $dateTime->setTimezone(static::timezone());
        return $dateTime->format('[c]')
            ." ".$this->getLogLevelName($level)
            ." @".$this->channel
            ." uid:".$this->uid
            ." - "
            .$message
            ." - "
            .json_encode($context);
    }