interface Addressable {
    key(): string;
    digest(): string;
}
declare function bytesToHex(a: Uint8Array): string;
declare function toKey(v: string, salt: string): Promise<string>;
declare function toAddressKey(zeroExHex: string, salt: string): Promise<string>;
declare function addressToBytes(s: string): Uint8Array;
export { toKey, toAddressKey, bytesToHex, addressToBytes, Addressable, };