import type * as P from "@principia/prelude";
import type { Const, URI, V } from "./model";
export declare const map_: <E, A, B>(fa: Const<E, A>, _: (a: A) => B) => Const<E, B>;
export declare const map: <A, B>(_: (a: A) => B) => <E>(fa: Const<E, A>) => Const<E, B>;
/**
 * @category Functor
 * @since 1.0.0
 */
export declare const Functor: P.Functor<[URI], V>;
//# sourceMappingURL=functor.d.ts.map