import { Validator } from "./validator";
import { Order } from "./order";
import { Board } from "./types";
import * as Error from "./error";
export declare class BuildValidator<Power> implements Validator<Power> {
    /**
     * @param stringify Stringify instances of Power
     */
    constructor();
    unitsRequiringOrder(board: Board<Power>): Set<any>;
    errorOfOrder(board: Board<Power>, order: Order<Power>): Error.UnbuildableLocation<Power> | Error.PowerWithProblem<Power> | Error.InvalidPhase<Power> | null;
    errorOfOrders(board: Board<Power>, orders: Set<Order<Power>>): Error.PowerWithProblem<Power> | null;
}