import { FC } from 'react';
export type ProgressOverlayProps = {
    /** 0..1 for a determinate bar; null/undefined for an indeterminate spinner. */
    progress?: number | null;
    /** Text shown before the percentage (e.g. "Loading", "Saving", "Pasting"). */
    label?: string;
};
/**
 * Shared progress overlay: a centered card with a spinner + label, plus a determinate bar
 * when `progress` is given. One component for initial loading, save, and chunked async
 * mutations so every progress indicator looks and behaves the same. It spans its (positioned)
 * container to capture pointer events — blocking interaction while work runs — but does NOT
 * dim, so the grid stays visible behind it. Drive it with a prop for cheap/occasional updates
 * (load/save); for a high-frequency mutation tick use AsyncProgressOverlay's imperative handle
 * so a tick re-renders only the overlay, not the grid.
 */
export declare const ProgressOverlay: FC<ProgressOverlayProps>;
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