import BN from 'bn.js';
import { Decimal } from 'decimal.js';
import { MessageTypes, TypedMessage } from '@metamask/eth-sig-util';
import { CoinType } from '../constant';
export declare function sleep(ms: number): Promise<void>;
/**
 * Check if string is HEX, requires a 0x in front
 *
 * @method isHexStrict
 * @param {String} hex to be checked
 * @returns {Boolean}
 */
export declare function isHexStrict(hex: string | number): boolean;
/**
 * Takes an input and transforms it into an BN
 *
 * @method toBN
 * @param {Number|String|BN} number, string, HEX string or BN
 * @return {BN} BN
 */
export declare function toBN(number: number | string): BN;
/**
 * Converts value to it's number representation
 *
 * @method hexToNumber
 * @param {String|Number|BN} value
 * @return {String}
 */
export declare function hexToNumber(value: string | number): string | number;
/**
 * Convert a hexadecimal chainId to decimal
 * @param chainId
 */
export declare function chainIdHexToNumber(chainId: string | number): number;
/**
 * Converts to a checksum address
 *
 * @method toChecksumAddress
 * @param {String} address the given HEX address
 * @return {String}
 */
export declare function toChecksumAddress(address: string): string;
/**
 * Should be called to get hex representation (prefixed by 0x) of utf8 string
 *
 * @method utf8ToHex
 * @param {String} str
 * @returns {String} hex representation of input string
 */
export declare function utf8ToHex(str: string): string;
/**
 * Converts value to it's hex representation
 *
 * @method numberToHex
 * @param {String|Number|BN} value
 * @return {String}
 */
export declare function numberToHex(value: number | string): string;
/**
 * Converts value to it's decimal representation in string
 * @param value The value to convert
 * @returns The decimal representation of the given value
 */
export declare function toDecimal(value: string | number): Decimal;
/**
 * get mmJson hash and chainId hex
 * @param typedData
 * @param chainId
 */
export declare function mmJsonHashAndChainIdHex(typedData: TypedMessage<MessageTypes>, chainId: number): string;
export declare function convertTpUTXOSignature(base64SignData: string): string;
export declare function isDogecoinChain(coinType: CoinType): boolean;
/**
 * String reduction
 * @param inputString
 * @param head
 * @param tail
 * @param tokenStr
 */
export declare function collapseString(inputString?: string, head?: number, tail?: number, tokenStr?: string): string;
/**
 * open link in different ways depending on the device.
 * @param link
 */
export declare function smartOpen(link: string): void;
/**
 * Copy data to the clipboard
 * @param text
 * @param el
 */
export declare function copyText(text: string, el?: Element): Promise<void>;
/**
 * This function checks if the basic WebAuthn API is supported by the current browser.
 * It does so by checking if the 'credentials' property exists on the 'navigator' object
 * and if the 'PublicKeyCredential' property exists on the 'window' object.
 *
 * @returns {boolean} Returns true if the basic WebAuthn API is supported, false otherwise.
 */
export declare function checkWebAuthnSupport(): Promise<boolean>;
/**
 * Determine if the device supports syncing Passkey with iCloud storage.
 *
 * @returns {boolean} Returns true if the device supports syncing Passkey with iCloud storage, false otherwise.
 */
export declare function checkICloudPasskeySupport(): Promise<boolean>;
/**
 * get the shadow root of the wallet-bridge element
 */
export declare function getShadowDomRoot(): ShadowRoot;
export declare function isMetaMask(ethereum?: (typeof window)['ethereum']): boolean;
export declare function shouldUseWalletConnect(): boolean;
export declare function getWalletDeepLink(walletName: string, displayUri: string): string;
export declare function openDeepLink(deepLink: string): void;
/**
 * load script
 * @param src
 * @param id
 */
export declare function loadScript(src: string, id: string): Promise<any>;