public function log($str, $level = 'INFO', $log = false)
    {
        if ($this->isOutput()) {
            if ($log && in_array($level, array_keys(Logger::getLevels()))) {
                $this->vbot->log->log($level, $str);
            }
            echo '['.Carbon::now()->toDateTimeString().']'."[{$level}] ".$str.PHP_EOL;
        }
    }