line with 1 not select konva code example

Example: konva line thickness

var line = new Konva.Line({
  x: 100,
  y: 50,
  points: [73, 70, 340, 23, 450, 60, 500, 20],
  stroke: 'red',
  tension: 1,
  strokeWidth: 3 //Thickness
});