import { HdPath } from '@cosmjs/crypto';
/**
 * KeyUtils provides helpers for working with Nolus accounts.
 */
export declare class KeyUtils {
    static getPrivateKeyFromMnemonic(mnemonic: string, hdPath: HdPath): Promise<Uint8Array<ArrayBufferLike>>;
    static getSeedFromMnemonic(mnemonic: string): Promise<Uint8Array<ArrayBufferLike>>;
    static getPrivateKeyFromSeed(seed: Uint8Array, hdPath: HdPath): Uint8Array<ArrayBufferLike>;
    static getAddressFromPublicKey(publicKey: Uint8Array, prefix?: string): string;
    static getPublicKeyFromPrivateKey(privateKey: Uint8Array): Promise<Uint8Array<ArrayBuffer>>;
    static isAddressValid(address: string, prefix?: string): boolean;
    static generateMnemonic(): string;
}