import { Provider } from "@ethersproject/providers";
import { BigNumberish } from "ethers";
import { Address } from "../types";
export declare function addressEq(address1: string, address2: string): boolean;
export declare function toWei(amount: BigNumberish): BigNumberish;
export declare function toEth(amount: BigNumberish): BigNumberish;
export declare function verifyAddress(provider: Provider, address: Address): Promise<Address>;
export declare function supports1271(provider: Provider, address: Address): Promise<boolean>;
export declare function isContract(provider: Provider, address: Address): Promise<boolean>;