ChartJs。如何将线条图延伸到边？

<canvas id="myChart"></canvas>

var ctx = document.getElementById('myChart').getContext('2d');
var myChart = new Chart(ctx, {
    type: 'line',
    data: {
        labels: ['January', 'February', 'March', 'April', 'May', 'June', 'July'],
        datasets: [{
            label: 'My Dataset',
            data: [10, 20, 30, 40, 50, 60, 70],
            fill: true, // 设置为true，将填充线条下方的区域
            borderColor: 'rgba(255, 99, 132, 1)', // 设置线条颜色
            backgroundColor: 'rgba(255, 99, 132, 0.2)' // 设置填充区域的颜色
        }]
    },
    options: {
        scales: {
            y: {
                beginAtZero: true
            }
        }
    }
});

options: {
    plugins: {
        title: {
            display: true,
            text: 'My Chart'
        },
        legend: {
            display: true,
            position: 'bottom'
        }
    }
}