/**
 * Importing the necessary types for handling errors.
 * @import {ErrorFuncType, ErrorExpectedType, ErrorMessageType, ErrorMethodType, findErrorType} from '../types/error';
 */
import { ErrorFuncType, ErrorExpectedType, ErrorMessageType, ErrorMethodType } from '../types/error';
/**
 * Err class is an Error handling class to check your method or variable or anything you want and returned expected message and error
 * @param T type of callback
 * @param U type of expected returned type
 * @param M type of message
 */
export declare class Err<T, U, M> {
    #private;
    /**
     * @property method is an method or property you want to validate
     */
    method: ErrorMethodType<T>;
    /**
     *
     * @param method is an method or property you want to validate
     * @param expected is an something you want to validate quality to return element in method property
     * @param ErrorFunc is an method when method returned false this specific class constructor run
     * @param message is an property you want to returned as message to user
     */
    constructor(method: ErrorMethodType<T>, expected: ErrorExpectedType<U>, ErrorFunc?: ErrorFuncType, message?: ErrorMessageType<M>);
    /**
     * this method get all error if you have any error
     * @return object if have any error
     * @return true if anything will be fine
     */
    getError: () => unknown;
}