export interface Selection {
    /** Spread (`[...selected]`) to hand ids to a bulk action. */
    selected: ReadonlySet<string>;
    has: (id: string) => boolean;
    /** Across pages: the running total a `SelectionBar` shows. */
    count: number;
    /** Sets explicitly when `on` is passed (a row checkbox's `onChange`). */
    toggle: (id: string, on?: boolean) => void;
    /** The select-all `onChange(on)`. */
    setAll: (ids: readonly string[], on: boolean) => void;
    /** A select-all's `checked`; false for an empty set. */
    allSelected: (ids: readonly string[]) => boolean;
    /** A select-all's `indeterminate`. */
    indeterminate: (ids: readonly string[]) => boolean;
    clear: () => void;
}
/** Always-on multi-select for a register with `Table` + `SelectionBar`. Gating stays with the caller: pass
 *  only selectable ids to `setAll`/`allSelected`/`indeterminate`. Persists across pages. (Tap-and-hold
 *  selection mode is `useSelectionMode`.) A changed `scope` drops the selection, since a bulk act must not
 *  run over rows out of view; it is read in the render that changes it, not an effect, so no committed
 *  render counts gone rows. */
export declare function useSelection(scope?: string): Selection;