src/MultiLogger.php
public function useFiles($path, $level = 'debug')
    {
        foreach ($this->loggers as $logger) {
            if ($logger instanceof Log) {
                $logger->useFiles($path, $level);
            }
        }
    }
public function useFiles($path, $level = 'debug')
    {
        foreach ($this->loggers as $logger) {
            if ($logger instanceof Log) {
                $logger->useFiles($path, $level);
            }
        }
    }
Register a file log handler.

@param string $path
@param string $level

@return void