/**
 * Copyright 2020 Angus.Fenying <fenying@litert.org>
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
import { RawPromise } from './class.RawPromise';
export declare type ITimeoutResult<T, E> = {
    'error': null;
    'value'?: T;
} | {
    'error': E;
    'value': void;
};
export declare type IPromiseTimeoutResultHandler<T, E> = (result: ITimeoutResult<T, E>) => void;
/**
 * A promise controllation with timeout.
 *
 * @deprecated Use `@litert/observable` instead. And this class will be removed in v2.0.0 version.
 */
export declare class TimeoutPromise<T = any, E = Error> extends RawPromise<T, E> {
    private _timer;
    private _msTimeout;
    private _timeoutError;
    private _handleTimeout;
    private _reject;
    private _resolve;
    /**
     * The constructor of a timeout-promise.
     *
     * @param msTimeout     The timeout in milliseconds.
     * @param timeoutError  The error object to be thrown if timeout
     * @param autoStart     Start the timer immediately.
     * @param handleTimeout Inject a handler to receiver the result after timeout.
     *
     * @deprecated Use `@litert/observable` instead. And this class will be removed in v2.0.0 version.
     */
    constructor(msTimeout: number, timeoutError: E, autoStart?: boolean, handleTimeout?: IPromiseTimeoutResultHandler<T, E>);
    private _initMethods;
    /**
     * Start the timer.
     */
    start(): void;
}
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