export declare const getBip39MnemonicSeedBuffer: (customBip39Mnemonic?: string) => Promise<{
    mnemonic: string;
    buffer: Uint8Array<ArrayBufferLike>;
}>;
export declare const getBlsKeys: (bip39MnemonicSeedBuffer: Uint8Array<ArrayBufferLike>) => Promise<{
    publicKey: string;
    privateKey: string;
}>;
export declare const getSha3HashFromHexString: (hexString: string) => string;
export declare const isHash: (str: string) => boolean;