import type { DataPoint } from "@d3plus/data";
import type Viz from "../Viz.js";
/**
    @module matrixData
    @private
 */
export default function (this: Viz, _data?: DataPoint[]): {
    rowValues: DataPoint[keyof DataPoint][];
    columnValues: DataPoint[keyof DataPoint][];
    shapeData: Record<string, unknown>[];
};
