export type TimelineChartTone = "category1" | "category2" | "category3" | "category4" | "category5" | "category6" | "category7" | "category8";
export type TimelineChartEvent = {
    /** Point on the axis (year, day index, ordinal step…). */
    position: number;
    /** Required short label, shown above/below the marker (alternated). */
    label: string;
    /** Optional longer description, surfaced in the accessible list + tooltip. */
    description?: string;
    /** Optional explicit categorical tone; otherwise cycles category1..8. */
    tone?: TimelineChartTone;
};
type TimelineChartProps = {
    data: TimelineChartEvent[];
    label: string;
    width?: number;
    height?: number;
    class?: string;
};
declare const TimelineChart: import("svelte").Component<TimelineChartProps, {}, "">;
type TimelineChart = ReturnType<typeof TimelineChart>;
export default TimelineChart;
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