/**
 * Type for error codes
 */
type ErrorCode = 'UNKNOWN' | 'USER_REJECTED_REQUEST' | 'UNSUPPORTED_METHOD' | 'DISCONNECTED' | 'INCORRECT_ARGUMENT' | 'LOGIN_FAILED' | 'TRANSACTION_FAILED' | 'BALANCE_FETCH_FAILED' | 'ACCOUNTS_FETCH_FAILED' | 'CHAIN_ID_FETCH_FAILED' | 'SWITCH_CHAIN_FAILED' | 'UNSUPPORTED_NETWORK_CHAIN_OPTION' | 'INVALID_API_KEY_OR_ENVIRONMENT' | 'EMBED_IFRAME_FAILED' | 'GET_IFRAME_WINDOW_FAILED' | 'SETUP_SECURE_WALLET_FAILED' | 'BOOTSTRAP_WALLET_TIMEOUT' | 'INIT_WALLET_FAILED' | 'DISCONNECT_WALLET_FAILED' | 'LOGOUT_FAILED' | 'DISCONNECT_WALLET_LOGOUT_FAILED' | 'INVALID_BTC_WALLET' | 'INSUFFICIENT_FUNDS' | 'TEARDOWN_FAILED';
/**
 * Custom Error class "MoonPayError"
 * This class is used to standardize the error handling process
 * and to identify all unknown errors in a systematic way.
 * @class
 * @extends {Error}
 */
declare class MoonPayError extends Error {
    /**
     * @property {ErrorCode} errorCode - The error code
     */
    errorCode: ErrorCode;
    /**
     * Constructor for the MoonPayError class
     * @constructor
     * @param {string} [message] - The error message
     * @param {ErrorCode} [errorCode='UNKNOWN'] - The error code
     */
    constructor(message?: string, errorCode?: ErrorCode);
    /**
     * Method to convert the error object to JSON format
     * @method
     * @returns {object} - JSON formatted error object
     */
    toJson: () => {
        name: string;
        message: string;
        errorCode: ErrorCode;
    };
}
export { MoonPayError };
export type { ErrorCode };