type MarkKind = 'bar' | 'point' | 'slice' | 'cell' | 'arc' | 'node' | 'edge';
/**
 * Per-mark metadata carried inertly in the SVG as `data-gc-*` attributes. `cx`/`cy`
 * are absolute pixel anchors so later interactivity phases can position/snap
 * without access to the chart's (inline) d3 scales.
 */
interface MarkMeta {
    kind: MarkKind;
    series?: string;
    index: number;
    label?: string;
    value: number | Record<string, number>;
    cx: number;
    cy: number;
}

export type { MarkKind as M, MarkMeta as a };