import { Aptos, AccountAddressInput } from "@aptos-labs/ts-sdk";
import { SettleDiscount } from "./type";
export declare const signDiscount: (discountVerifierPK: string, id: string, buyerDiscount: number, sellerDiscount: number) => SettleDiscount;
export declare const checkCoinToFa: (aptos: Aptos, sender: AccountAddressInput, exToken: string) => Promise<{
    useCoin: boolean;
    coinType: string;
}>;