code: public function retrieveAudioTemplate($id, CachePolicy $cachePolicy = null)
      {
          $parameters = [
              'query' => [],
              'body' => json_encode([], JSON_UNESCAPED_UNICODE),
              'headers' => [],
          ];
  
          $result = $this->get('v1/templates/audiotemplate', $parameters, $cachePolicy);
          $result = new AudioTemplate($result);
  
          return $result;
      }
docs: Fetches a specific AudioTemplate.
  
  Fetches a Audio Template by the specified identifier.
  
  @param int         $id          The audio templates identifier..
  @param CachePolicy $cachePolicy a custom cache policy used for this request only
  
  @return AudioTemplate