import { DestOptions } from 'vinyl-fs';
import { ITransform } from './ITransform';
import { Expression, IActivity, ExpressionType } from '@taskfr/core';
import { InjectPipeActivityToken } from './IPipeActivity';
import { IPipeConfigure } from './IPipeConfigure';
import { PipeActivity } from './PipeActivity';
/**
 * dest activity token.
 */
export declare const DestAcitvityToken: InjectPipeActivityToken<DestActivity>;
/**
 * dest pipe configure.
 *
 * @export
 * @interface IPipeDestConfigure
 * @extends {IPipeConfigure}
 */
export interface DestConfigure extends IPipeConfigure {
    /**
     * pipe dest.
     *
     * @type {ExpressionType<string>}
     * @memberof IPipeConfigure
     */
    dest?: ExpressionType<string>;
    /**
     * dest options.
     *
     * @type {ExpressionType<DestOptions>}
     * @memberof IPipeConfigure
     */
    destOptions?: ExpressionType<DestOptions>;
}
/**
 * pipe dest activity.
 *
 * @export
 * @class PipeDestActivity
 * @extends {PipeComponent<IPipeDest>}
 * @implements {IPipeDest}
 * @implements {OnTaskInit}
 */
export declare class DestActivity extends PipeActivity {
    /**
     * source
     *
     * @type {Expression<string>}
     * @memberof IPipeDest
     */
    dest: Expression<string>;
    /**
     * source options.
     *
     * @type {Expression<DestOptions>}
     * @memberof PipeDest
     */
    destOptions: Expression<DestOptions>;
    onActivityInit(config: DestConfigure): Promise<void>;
    protected afterPipe(stream: ITransform, execute?: IActivity): Promise<ITransform>;
    /**
     * write dest stream.
     *
     * @protected
     * @param {ITransform} stream
     * @returns {Promise<ITransform>}
     * @memberof DestActivity
     */
    protected writeStream(stream: ITransform): Promise<ITransform>;
    static classAnnations: any;
}