public function placeProxyBidAsyncWithHttpInfo($item_id, $x_ebay_c_marketplace_id, $place_proxy_bid_request = null)
    {
        $returnType = '\TNT\Ebay\Buy\OfferBeta\V1\Model\PlaceProxyBidResponse';
        $request = $this->placeProxyBidRequest($item_id, $x_ebay_c_marketplace_id, $place_proxy_bid_request);