import type { ReactiveController, ReactiveControllerHost } from 'lit';
export interface KeyStateControllerOptions {
    readonly watchedCodes: ReadonlyArray<string>;
}
type KeyStateHost = ReactiveControllerHost & Pick<HTMLElement, 'ownerDocument'>;
/** Provides host-scoped access to shared raw keyboard state without assigning interaction semantics to any key. */
export declare class KeyStateController implements ReactiveController {
    #private;
    constructor(host: KeyStateHost, { watchedCodes }: KeyStateControllerOptions);
    /** Enables shared keyboard tracking during the host's connected lifecycle. */
    get enabled(): boolean;
    set enabled(value: boolean);
    /** Returns whether a key identified by `KeyboardEvent.code` is currently held. */
    isPressed(code: string): boolean;
    hostConnected(): void;
    hostDisconnected(): void;
}
export {};