Как повернуть метки данных в Charts.js с помощью плагинов?

Current = Date.now();
$.getJSON("https://api.openweathermap.org/data/2.5/onecall?lat = {LAT}&lon = {LONG}&dt = " + Current + "&appid = {MY API CODE}", function(data) {
      $.each(data.hourly, function(key, value) {
        var d = new Date(value.dt * 1000);
        minutes = "0" + d.getMinutes()
        var date_corrected = d.getFullYear() + "-" + [d.getMonth() + 1] + '-' + d.getDate() + ' ' + [d.getHours()] + ':' + minutes.substr(-2);
        dataOpen1.push({
          x: date_corrected,
          y: value.wind_speed
        });
        dataOpen2.push({
          x: date_corrected,
          y: value.wind_deg
        });

      });
      var WIND = new Chart(vant, {
          plugins: [ChartDataLabels],
          type: 'line',
          data: {
            labels: dataOpen1.map(x => x.x),
            datasets: [{
              data: dataOpen1.map(y => y.y),
              label: 'Viteza vantului ',
              borderColor: "#3e95cd",
              fill: true
            }, ]
          },
          options: {
            plugins: {
              datalabels: {
                backgroundColor: 'white',
                borderRadius: 20,
                borderWidth: 3,
                borderDashOffset: 20,
                color: 'black',
                font: {
                  size: 18
                },
                formatter: function(value) {
                  return '\u27a3'
                },
                rotation: function(ctx) {
                  return ctx.dataset.data[ctx.dataIndex] * 25;
                },
                padding: 0
              }
            },
          });
      });

rotation:
  function(ctx) {
.......
    return ctx.dataset.data[ctx.dataIndex] * 25;
  },