src/Logger.php
protected function setFileHandler(string $logFile, int $logLevel = null)
    {
        $this->logFile = $logFile;
        $stream = new StreamHandler($logFile, $logLevel);
        $this->pushHandler($stream);        
    }
protected function setFileHandler(string $logFile, int $logLevel = null)
    {
        $this->logFile = $logFile;
        $stream = new StreamHandler($logFile, $logLevel);
        $this->pushHandler($stream);        
    }
Set up a logger to write to logFile
@param string $logFile
@param int $logLevel