import { FileDownloadInfo, FileState, FileStatus } from './internal/model';
export declare const download: (url: string, options: {
    filename: string;
    ext: string;
}, headers?: any) => Promise<FileDownloadInfo>;
export declare const abort: (id: string) => Promise<{
    success: boolean;
}>;
export declare const state: (id: string) => Promise<FileState>;
export declare const retry: (id: string) => Promise<{
    id: string;
    status: FileStatus;
}>;