10     private $filename;  variable in GuzzleHttp\\Cookie\\FileCookieJar
27         $this->filename = $cookieFile;
40         $this->save($this->filename);
46      * @param string $filename File to save
49     public function save($filename)  argument
60         if (false === file_put_contents($filename, $jsonStr, LOCK_EX)) {
61             throw new \RuntimeException("Unable to save file {$filename}");
70      * @param string $filename Cookie file to load.
73     public function load($filename)  argument
75         $json = file_get_contents($filename);
77             throw new \RuntimeException("Unable to load file {$filename}");
88             throw new \RuntimeException("Invalid cookie file: {$filename}");