import { StatsObject } from '../util';
import StreamHandler from '../streamHandler';
export declare class PushTransfer extends StreamHandler {
    private readonly stack;
    private readonly stats;
    cancel(): boolean;
    push(byteCount: number): void;
    pop(): void;
    end(): void;
    on(event: 'error', listener: (err: Error) => void): this;
    on(event: 'end' | 'cancel', listener: () => void): this;
    on(event: 'progress', listener: (stats: StatsObject) => void): this;
}