59      * @param array            $options
63     public function __invoke(RequestInterface $request, array $options)  argument
65         if (!isset($options['retries'])) {
66             $options['retries'] = 0;
70         return $fn($request, $options)
72                 $this->onFulfilled($request, $options),
73                 $this->onRejected($request, $options)
82     private function onFulfilled(RequestInterface $req, array $options)  argument
84         return function ($value) use ($req, $options) {
87                 $options['retries'],
94             return $this->doRetry($req, $options, $value);
103     private function onRejected(RequestInterface $req, array $options)  argument
105         return function ($reason) use ($req, $options) {
108                 $options['retries'],
115             return $this->doRetry($req, $options);
122 …private function doRetry(RequestInterface $request, array $options, ResponseInterface $response = …  argument
124         $options['delay'] = call_user_func($this->delay, ++$options['retries'], $response);
126         return $this($request, $options);