import { TransactionRequest } from 'ethers';
import { CheckoutConfiguration } from '../../config';
import { ItemType, ItemRequirement, GasAmount, FulfillmentTransaction, BuyResult, BuyOrder, BuyOverrides } from '../../types/smartCheckout';
import { WrappedBrowserProvider } from '../../types';
export declare const getItemRequirement: (type: ItemType, tokenAddress: string, amount: bigint, spenderAddress: string, isFee?: boolean) => ItemRequirement;
export declare const getTransactionOrGas: (gasLimit: number, fulfillmentTransactions: TransactionRequest[]) => FulfillmentTransaction | GasAmount;
export declare const buy: (config: CheckoutConfiguration, provider: WrappedBrowserProvider, orders: Array<BuyOrder>, overrides?: BuyOverrides) => Promise<BuyResult>;