import { TServiceParams } from "@digital-alchemy/core";
import { TTYComponentKeymap } from "../helpers";
interface KeymapHelpOptions {
    current?: unknown;
    maxLength?: number;
    /**
     * use maxLength instead
     *
     * @deprecated
     */
    message?: string;
    notes?: string;
    onlyHelp?: boolean;
    prefix?: TTYComponentKeymap;
}
export declare function KeyMapExtension({ config, terminal }: TServiceParams): {
    keymapHelp({ current, message, maxLength, notes, prefix, onlyHelp, }?: KeymapHelpOptions): string;
};
export {};