code: public OvhOrder dedicated_server_serviceName_firewall_duration_GET(String serviceName, String duration, OvhFirewallModelEnum firewallModel) throws IOException {
  		String qPath = "/order/dedicated/server/{serviceName}/firewall/{duration}";
  		StringBuilder sb = path(qPath, serviceName, duration);
  		query(sb, "firewallModel", firewallModel);
  		String resp = exec(qPath, "GET", sb.toString(), null);
  		return convertTo(resp, OvhOrder.class);
  	}
docs: Get prices and contracts information
  
  REST: GET /order/dedicated/server/{serviceName}/firewall/{duration}
  @param firewallModel [required] Firewall type
  @param serviceName [required] The internal name of your dedicated server
  @param duration [required] Duration