import { ReactiveController, ReactiveControllerHost } from 'lit';
export declare class TooltipReactiveController implements ReactiveController {
    private host;
    private attributeName;
    private content?;
    private static tooltipContainer;
    constructor(host: ReactiveControllerHost & HTMLElement, options?: {
        content?: string | ((element: HTMLElement) => string);
        attributeName?: string;
    });
    hostConnected(): void;
    hostDisconnected(): void;
    private handleMouseOver;
    private handleMouseOut;
}