/** * @param null|AttachmentsFilter $data * @return null|void */ public function attachments($data = null) { $action = 'attachments'; $postMainParameters = null; if ($data instanceof AttachmentsFilter) { $this->addMainParameter($data->getId()); $this->addSecondaryParameter('format', $data->getFormat()); $this->addSecondaryParameter('max_width', $data->getMaxWidth()); $this->addSecondaryParameter('max_height', $data->getMaxHeight()); } elseif (is_int($data)) { $this->addMainParameter($data); } $response = $this->call($action, $postMainParameters); $result = $this->handleResponse($response); return $result; }