export declare const Hard = 2147483648;
export interface ExtendedKey {
    readonly chainCode: Uint8Array;
    derive(index: number): ExtendedKey;
    derivePath(path: Iterable<number>): ExtendedKey;
}
export interface ExtendedPrivateKey extends ExtendedKey {
    derive(index: number): ExtendedPrivateKey;
    derivePath(path: number[]): ExtendedPrivateKey;
}