import { Context } from 'koishi';
import { ResolveOptions, State } from 'nereid';
export declare class DownloadTask {
    private ctx;
    private srcs;
    private bucket;
    private options;
    state: State;
    promise: Promise<string>;
    private resolve;
    constructor(ctx: Context, srcs: string[], bucket: string, options: ResolveOptions);
    start(): Promise<void>;
    cancel(): void;
}