import { TransactionRequest } from 'ethers';
import { ItemRequirement, WrappedBrowserProvider } from '../../types';
import { Allowance } from './types';
export declare const getERC20Allowance: (provider: WrappedBrowserProvider, ownerAddress: string, contractAddress: string, spenderAddress: string) => Promise<bigint>;
export declare const getERC20ApprovalTransaction: (provider: WrappedBrowserProvider, ownerAddress: string, contractAddress: string, spenderAddress: string, amount: bigint) => Promise<TransactionRequest | undefined>;
export declare const hasERC20Allowances: (provider: WrappedBrowserProvider, ownerAddress: string, itemRequirements: ItemRequirement[]) => Promise<{
    sufficient: boolean;
    allowances: Allowance[];
}>;