import { KeyPair } from '@tokenscript/attestation/dist/libs/KeyPair';
import { OffChainTokenConfig } from '../client/interface';
import { OutletIssuerInterface } from '../outlet/interfaces';
export interface IssuerHashMap {
    [collectionId: string]: string[];
}
declare global {
    interface Window {
        DISPLAY_DEBUG_LEVEL: string;
    }
}
export declare function logger(level: number, ...args: any[]): void;
export declare const requiredParams: (item: any, msg: string) => void;
export declare const compareObjects: (o1: any, o2: any) => boolean;
export declare const base64ToUint8array: (base64str: string) => Uint8Array;
export declare const attachPostMessageListener: (listener: any) => void;
export declare const removePostMessageListener: (listener: any) => void;
export declare const waitForElementToExist: (selector: string) => Promise<Element>;
export type ErrorType = 'warning' | 'info' | 'error';
export declare const errorHandler: (error: any, type: ErrorType, action?: Function | null, data?: unknown, log?: boolean, throwError?: boolean) => {
    type: ErrorType;
    message: any;
    data: unknown;
};
export declare class NegotiatorError extends Error {
    originalError: any;
    code?: string;
    constructor(message: string, originalError: any, code?: string);
}
export declare const tokenRequest: (query: string, silenceRequestError: boolean) => Promise<any>;
export declare const removeUrlSearchParams: (params: URLSearchParams, additionalParams?: string[], namespace?: string | null) => URLSearchParams;
export declare const base58ToUint8Array: (base58String: any) => Uint8Array;
export declare const strToHexStr: (str: string) => string;
export declare const strToUtfBytes: (str: string) => Uint8Array;
export declare const hexStringToUint8Array: (hexString: string) => Uint8Array;
export declare const createIssuerHashMap: (issuers: OffChainTokenConfig[]) => IssuerHashMap;
export declare const createIssuerHashArray: (issuer: OffChainTokenConfig | OutletIssuerInterface) => any[];
export declare const createOffChainCollectionHash: (key: KeyPair, eventId: string, schemaUid?: string) => string;
export declare const createCookie: (name: string, value: any, seconds: number) => void;
export declare const isCookieMaxAgeExpired: (cookieName: any) => boolean;
export declare const isCookieExpired: (cookieName: string) => boolean;
export declare const getCookieByName: (cookieName: string) => string;
export declare const deleteCookieByName: (cookieName: any) => void;
export declare const sleep: (ms: number) => Promise<void>;