import React from "react";
interface HeaderButtonsProps {
    username?: string;
    onLogout(): void;
    onZoomIn(): void;
    onZoomOut(): void;
    onZoomReset(): void;
}
export default function HeaderButtons({ username, onZoomIn, onZoomOut, onZoomReset, onLogout, }: HeaderButtonsProps): React.JSX.Element;
export {};