import type { SankeyState } from '../types/sankey-state.js';
/**
 * Compares by reference rather than deeply: both hovered and selected shapes
 * carry only string ids, so reference comparison is correct and cheap.
 * Writers only publish a new shape when the identity actually changes.
 */
export declare const useSankeySelector: <T>(selector: (state: SankeyState) => T) => T;
export declare const useSankeyHoveredShape: () => import("../types/sankey-shape.js").SankeyShape | undefined;
export declare const useSankeySelectedShape: () => import("../types/sankey-shape.js").SankeyShape | undefined;
/**
 * The active highlight set — the nodes and links to keep emphasized while every
 * other shape dims. Derived state: computed once from `hovered`/`selected`
 * against the current layout and shared via `SankeyHighlightContext`. Returns
 * `undefined` when nothing is highlighted.
 */
export declare const useSankeyActiveHighlight: () => import("../utils/get-active-connected-set.js").ActiveConnectedSet | undefined;
//# sourceMappingURL=selectors.d.ts.map