code: public function read($id = null)
      {
          if ($id === null) {
              $response = $this->client->request->get($this->apiEndpoint."/droplets");
          } else {
              $response = $this->client->request->get($this->apiEndpoint."/droplets/$id");
          }
  
          return $this->client->getBody($response);
      }
docs: List details for an indexed server, or all servers if id is null.
  
  @param integer $id
  @return GuzzleResponse object | array of GuzzleResponse objects