import { Hex } from 'viem';
import { ContractWithdrawal, type PredicateSignatureResponse } from '../types';
export * from './api.utils';
export * from './localstorage.manager';
export * from './mappers';
/**
 * Generates a random hex string of specified byte length
 * @param {number} length - Number of random bytes to generate
 * @returns {string} Random hex string of length * 2 characters
 * @throws {Error} If length is invalid or crypto API is unavailable
 */
export declare function randomBytesHex(length?: number): string;
export declare function sleep(ms: number): Promise<unknown>;
export declare function hexToUint8Array(input: string): Uint8Array<ArrayBuffer>;
export declare const getHdPrivateKeyFromMnemonic: (mnemonic: string, derivePath?: string) => Hex;
export declare function getPkFromEntropy(entropy: string, derivativePath?: {
    derive_path: number;
    redeposit_derive_path: number;
}): Hex | null;
export declare function getWithdrawHash(w: ContractWithdrawal): string;
export declare function uint8ToBase64(u8: Uint8Array): string;
export declare const generateEntropy: (networkSign: Hex, hashedSignature: string) => `0x${string}`;
export declare const signaturesToBytes: (response: PredicateSignatureResponse) => {
    taskId: string;
    expireByBlockNumber: number;
    signerAddresses: string[];
    signatures: import("viem").ByteArray[];
};