export declare function generateMnemonic(wordlist: string[], strength?: number): string;
export declare function mnemonicToEntropy(mnemonic: string, wordlist: string[]): Uint8Array;
export declare function entropyToMnemonic(entropy: Uint8Array, wordlist: string[]): string;
export declare function validateMnemonic(mnemonic: string, wordlist: string[]): boolean;
export declare function mnemonicToSeed(mnemonic: string, passphrase?: string): Promise<Uint8Array>;
export declare function mnemonicToSeedSync(mnemonic: string, passphrase?: string): Uint8Array;