import { ViewerStore, ViewerStoreEquality } from 'pptx-viewer-shared';
export declare class ViewerStoreSelection<T> {
    #private;
    constructor(subscribe: (set: (value: T) => void) => () => void, initial: T);
    /** The selected value. Reading this inside an effect tracks it. */
    get value(): T;
    /** Tear down the subscription. */
    destroy(): void;
}
/** Subscribe to one projection of a viewer store as reactive Svelte state. */
export declare function viewerStoreSelection<S, T>(store: ViewerStore<S>, selector: (state: S) => T, isEqual?: ViewerStoreEquality<T>): ViewerStoreSelection<T>;
//# sourceMappingURL=viewer-store.svelte.d.ts.map