import type { Keymap, KeymapEvent, ReactiveMatcher } from "../../index.js";
/**
 * Accepted `enabled` values: boolean, raw `() => boolean`, or an
 * `ReactiveMatcher` for subscription-driven invalidation.
 */
export type Enabled = boolean | (() => boolean) | ReactiveMatcher;
/**
 * Adds `enabled` layer and command fields for boolean, callback, or reactive
 * matcher gating.
 */
export declare function registerEnabledFields<TTarget extends object, TEvent extends KeymapEvent>(keymap: Keymap<TTarget, TEvent>): () => void;