export type DownloadStatus = 'idle' | 'loading' | 'done' | 'error';
export type DownloadResult = void | Blob | File | string | ArrayBuffer | Response;
interface DownloadButtonProps {
    /** Direct URL (uses native `<a download>` when no async handler). */
    href?: string;
    /** Suggested filename for downloads. */
    filename?: string;
    label?: string;
    loadingLabel?: string;
    doneLabel?: string;
    errorLabel?: string;
    size?: 'xs' | 'sm' | 'md' | 'lg' | 'xl';
    variant?: 'primary' | 'secondary' | 'ghost' | 'outline' | 'destructive';
    disabled?: boolean;
    /** Controlled loading (also set automatically in async mode). */
    loading?: boolean;
    /** Bindable status for external UI. */
    status?: DownloadStatus;
    fullWidth?: boolean;
    showIcon?: boolean;
    iconOnly?: boolean;
    /** How long to show the success state (ms). 0 = keep done. */
    doneDuration?: number;
    /** Optional MIME when downloading ArrayBuffer / constructing Blob. */
    mimeType?: string;
    /** Open `href` in a new tab instead of downloading. */
    openInNewTab?: boolean;
    class?: string;
    /**
     * Async / programmatic download. May return:
     * - `void` (you handle the download yourself)
     * - `Blob` | `File` | `ArrayBuffer` | data URL / object URL string
     * - `Response` (body is consumed as blob)
     * - `Promise` of any of the above
     */
    ondownload?: () => DownloadResult | Promise<DownloadResult>;
    /** Fired when a download finishes successfully. */
    onsuccess?: (filename?: string) => void;
    /** Fired when async download fails. */
    onerror?: (error: unknown) => void;
    /** Legacy click hook (still called for link mode). */
    onclick?: () => void;
}
declare const DownloadButton: import("svelte").Component<DownloadButtonProps, {}, "status">;
type DownloadButton = ReturnType<typeof DownloadButton>;
export default DownloadButton;