import { SCYVault, AggregatorVault, SCYWEpochVault, AggregatorWEpochVault } from '../../typechain';
import { IChain } from '../../utils';
export declare const useUnderlying: (chain: IChain | null, vault: SCYVault | SCYWEpochVault | AggregatorVault | AggregatorWEpochVault | undefined) => {
    uAddress: string | undefined;
    uSymbol: string | undefined;
    uDec: number | undefined;
    underlying: import("../../typechain").ERC20 | undefined;
};
