code: public function getAddon(string $addonCode): array
      {
          $cacheKey = sprintf('addon_%s', $addonCode);
          $hit = $this->getFromCache($cacheKey);
  
          if (false === $hit) {
              $response = $this->sendRequest('GET', sprintf('addons/%s', $addonCode));
  
              $data = $this->processResponse($response);
              $addon = $data['addon'];
  
              $this->saveToCache($cacheKey, $addon);
  
              return $addon;
          }
  
          return $hit;
      }
docs: @param string $addonCode
  
  @throws \Exception
  
  @return array