export declare class ChartDot {
    label: Date | string | number;
    value: number;
    tooltipLabel: string;
    constructor(label: Date | string | number, value: number, tooltipLabel?: string);
}
export declare class PieChartPoint {
    label: string;
    number: number;
    constructor(label: string, number: number);
}
export declare class ChartKeyValue {
    key: string;
    value: number;
    constructor(key: string, value: number);
}