import { HttpError } from "@leyyo/common";
/**
 * Http 426 Upgrade Required
 *
 * The server refuses to perform the request using the current protocol but might be willing to do so after the client upgrades to a different protocol. The server sends an Upgrade header in a 426 response to indicate the required protocol(s).
 * */
export declare class UpgradeRequiredError extends HttpError {
}