import { HidKeyboardAction, HidKeyboardModifiers } from "../jdom/constants";
import { JDServiceServer, JDServerOptions } from "../jdom/servers/serviceserver";
import { SMap } from "../jdom/utils";
export declare class HIDKeyboardServer extends JDServiceServer {
    private _lastKey;
    constructor(options?: JDServerOptions);
    get lastKey(): [number, HidKeyboardModifiers, HidKeyboardAction][];
    private handleKey;
    private handleClear;
}
/**
 * @internal
 */
export declare const selectors: SMap<number>;
/**
 * @internal
 */
export declare const reverseSelectors: {
    [index: number]: string;
};
/**
 * @internal
 */
export declare const modifierCodes: {
    controlleft: HidKeyboardModifiers;
    altleft: HidKeyboardModifiers;
    shiftleft: HidKeyboardModifiers;
    metaleft: HidKeyboardModifiers;
    controlright: HidKeyboardModifiers;
    altright: HidKeyboardModifiers;
    shiftright: HidKeyboardModifiers;
    metaright: HidKeyboardModifiers;
};
/**
 * @internal
 */
export declare function renderKeyboardKey(selector: number, modifiers: HidKeyboardModifiers, pretty: boolean): string;
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