code: public function putTransportContent($request)
      {
          if (!($request instanceof FBAInboundServiceMWS_Model_PutTransportContentRequest)) {
              $request = new FBAInboundServiceMWS_Model_PutTransportContentRequest($request);
          }
          $parameters = $request->toQueryParameterArray();
          $parameters['Action'] = 'PutTransportContent';
          $httpResponse = $this->_invoke($parameters);
  
          $response = FBAInboundServiceMWS_Model_PutTransportContentResponse::fromXML($httpResponse['ResponseBody']);
          $response->setResponseHeaderMetadata($httpResponse['ResponseHeaderMetadata']);
          return $response;
      }
docs: Put Transport Content
  A write operation which sellers use to provide transportation details regarding
  how an inbound shipment will arrive at Amazon's Fulfillment Centers.
  
  @param mixed $request array of parameters for FBAInboundServiceMWS_Model_PutTransportContent request or FBAInboundServiceMWS_Model_PutTransportContent object itself
  @see FBAInboundServiceMWS_Model_PutTransportContentRequest
  @return FBAInboundServiceMWS_Model_PutTransportContentResponse
  
  @throws FBAInboundServiceMWS_Exception