import React from "react";
import type { OverlayProps } from "../internal/types";
export type UsageChartProps = {
    notebooks: {
        uuid: string;
        pages: number;
        app: number;
        workspace: string;
        appName: string;
    }[];
    quotas: Record<string, number>;
    portalContainer?: HTMLElement;
};
declare const UsageChart: ({ onClose, portalContainer, isOpen, ...stats }: OverlayProps<UsageChartProps>) => React.JSX.Element;
export default UsageChart;