How do I get dataset object from chart object in chart.js typescript?

I am trying to create new custom plugin for chart.js and having issues with type error while getting dataset option from chart object.

This is plugin code.

const gaugeNeedle: Plugin<"doughnut"> = {  id: "gaugeNeedle",  afterDatasetDraw(chart: Chart<"doughnut">, args, options) {    if (!chart || typeof options.needleValue === "undefined") {      return;    }    const {      ctx,      chartArea: { width },    } = chart;    const datasetMeta: ChartMeta<"doughnut"> = chart.getDatasetMeta(0);    const { rotation, circumference } = datasetMeta._dataset; // datasetMeta object hasn't got _dataset property    ctx.save();    const { needleValue, dataTotal } = options;    const angle =      (((1 / dataTotal) * needleValue * circumference - (90 - rotation)) /        180) *      Math.PI;    const cx = width / 2;    const cy = datasetMeta.data[0].y;    ...

Here is chart options for doughnut.

  const data = useMemo<ChartData<"doughnut", number[], string>>(    () => ({      labels: ["Filled", "Unfilled"],      datasets: [        {          label: "Speedometer",          data: [value, 100 - value], // Example data: 65% filled, 35% unfilled          borderWidth: 0,          borderRadius: 10,          cutout: "85%", // Adjust for thicker/thinner gauge appearance          circumference: 240,          rotation: -120,          backgroundColor: (context: ScriptableContext<"doughnut">) => {            const chart = context.chart;            const { chartArea } = chart;            if (!chartArea) {              return undefined;            }            if (context.dataIndex === 0) {              return getGradient(chart, value);            } else {              return "grey";            }          },        },      ],    }),    [value],  );

I want to get rotation and circumference from chart object inside afterDatasetDraw, how can I do that?

I have tried to log the datasetMeta to the browser console but it has _dataset property.Above code is working correctly but I am getting only typescript error, and also I only want to get rotation and circumference for first dataset so if you know another way to get them, please help me.