GuzzleHttp\Client::__call PHP Method

    public function __call($method, $args)
    {
        if (count($args) < 1) {
            throw new \InvalidArgumentException('Magic request methods require a URI and optional options array');
        }
        $uri = $args[0];
        $opts = isset($args[1]) ? $args[1] : [];
        return substr($method, -5) === 'Async' ? $this->requestAsync(substr($method, 0, -5), $uri, $opts) : $this->request($method, $uri, $opts);
    }