import { EqualityCheck, Facet, Option, Setter } from '../types';
/**
 * Provides a parallel to React's useState, but instead returns a facet as the value
 *
 * @param initialValue mandatory initial value (pass NO_VALUE to force it to be uninitialized)
 * @param equalityCheck optional (has a default checker)
 */
export declare const useFacetState: <V>(initialValue: Option<V> | Facet<V>, equalityCheck?: EqualityCheck<V>) => [Facet<V>, Setter<V>];