import { MaterialMove, MaterialRulesPart } from '@gamepark/rules-api';
import { City } from '../../City';
import { Cost } from '../../material/Cost';
import { Product } from '../../material/Product';
export declare class CostHelper extends MaterialRulesPart {
    getProducts(player: City): import("@gamepark/rules-api").Material<number, number, number>;
    getProduct(player: City, product: Product): import("@gamepark/rules-api").Material<number, number, number>;
    getLetters(player: City): import("@gamepark/rules-api").Material<number, number, number>;
    canPay(player: City, cost: Cost): boolean;
    pay(player: City, cost: Cost): MaterialMove[];
}
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