code: public function listRecommendations($request)
      {
          if (!($request instanceof MWSRecommendationsSectionService_Model_ListRecommendationsRequest)) {
              require_once (dirname(__FILE__) . '/Model/ListRecommendationsRequest.php');
              $request = new MWSRecommendationsSectionService_Model_ListRecommendationsRequest($request);
          }
          $parameters = $request->toQueryParameterArray();
          $parameters['Action'] = 'ListRecommendations';
          $httpResponse = $this->_invoke($parameters);
  
          require_once (dirname(__FILE__) . '/Model/ListRecommendationsResponse.php');
          $response = MWSRecommendationsSectionService_Model_ListRecommendationsResponse::fromXML($httpResponse['ResponseBody']);
          $response->setResponseHeaderMetadata($httpResponse['ResponseHeaderMetadata']);
          return $response;
      }
docs: List Recommendations
  Retrieving first batch of recommendations.
  
  @param mixed $request array of parameters for MWSRecommendationsSectionService_Model_ListRecommendations request or MWSRecommendationsSectionService_Model_ListRecommendations object itself
  @see MWSRecommendationsSectionService_Model_ListRecommendationsRequest
  @return MWSRecommendationsSectionService_Model_ListRecommendationsResponse
  
  @throws MWSRecommendationsSectionService_Exception