private function getEncodingTypeMiddleware()
    {
        return static function (callable $handler) {
            return function (Command $command, $request = null) use ($handler) {
                $autoSet = false;
                if ($command->getName() === 'ListObjects'
                    && empty($command['EncodingType'])
                ) {
                    $command['EncodingType'] = 'url';
                    $autoSet = true;
                }

                return $handler($command, $request)
                    ->then(function (ResultInterface $result) use ($autoSet) {
                        if ($result['EncodingType'] === 'url' && $autoSet) {
                            static $topLevel = [
                                'Delimiter',
                                'Marker',
                                'NextMarker',
                                'Prefix',
                            ];
                            static $nested = [
                                ['Contents', 'Key'],
                                ['CommonPrefixes', 'Prefix'],
                            ];

                            foreach ($topLevel as $key) {
                                if (isset($result[$key])) {
                                    $result[$key] = urldecode($result[$key]);
                                }
                            }
                            foreach ($nested as $steps) {
                                if (isset($result[$steps[0]])) {
                                    foreach ($result[$steps[0]] as &$part) {
                                        if (isset($part[$steps[1]])) {
                                            $part[$steps[1]]
                                                = urldecode($part[$steps[1]]);
                                        }
                                    }
                                }
                            }

                        }

                        return $result;
                    });
            };
        };
    }