import { BasePipeline } from './base-pipeline';
import { MiddlewareContextInterface, MiddlewareLikeType } from './interfaces';
/**
 * Pipeline sequentially executes internally stored middleware against the context provided as .process argument.
 *
 * @implements IterableIterator
 * @implements PipelineInterface
 */
export declare class Pipeline<TIntermediate = {}, TContext = MiddlewareContextInterface<TIntermediate>> extends BasePipeline<TIntermediate, TContext> {
    /**
     * Pointer interface for lifting given pieces of middleware to a Pipeline.
     *
     * @param {...MiddlewareLikeType<TIntermediate>} middleware
     * @returns {Pipeline<TIntermediate>}
     */
    static of<TIntermediate = {}, TContext = MiddlewareContextInterface<TIntermediate>>(...middleware: Array<MiddlewareLikeType<TContext>>): Pipeline<TIntermediate, TContext>;
    /**
     * Pointer interface for creating a Pipeline from array of middleware.
     *
     * @param {Array<MiddlewareLikeType<TIntermediate>>} middleware
     * @returns {Pipeline<TIntermediate>}
     */
    static from<TIntermediate = {}, TContext = MiddlewareContextInterface<TIntermediate>>(middleware: Array<MiddlewareLikeType<TContext>>): Pipeline<TIntermediate, TContext>;
    /**
     * Pointer interface for creating an empty pipeline. Context type is optional and defaults to
     * MiddlewareContextInterface<unknown>.
     *
     * @returns {Pipeline<any>}
     */
    static empty<TIntermediate = unknown, TContext = MiddlewareContextInterface<TIntermediate>>(): Pipeline<TIntermediate, TContext>;
    /**
     * Sequentially process middleware internally stored in the Pipeline.
     *
     * If the middleware currently being executed returns a Promise, the Promise will be resolved before moving on to
     * the next middleware. Pipeline does not block the event loop. To avoid resolving the Promise, assign it to a key
     * of the middleware context and return void.
     *
     * @param {TContext} ctx
     * @returns {Promise<any>}
     */
    process(ctx: TContext): Promise<any>;
}