code: public ArrayList<OvhOfferEnum> availableOffer_GET(String domain) throws IOException {
  		String qPath = "/hosting/web/availableOffer";
  		StringBuilder sb = path(qPath);
  		query(sb, "domain", domain);
  		String resp = exec(qPath, "GET", sb.toString(), null);
  		return convertTo(resp, t2);
  	}
docs: Get available offer
  
  REST: GET /hosting/web/availableOffer
  @param domain [required] Domain you want to add or upgrade a hosting