             },
                mounted:                        async function  (  )                        {
                    let mm = this
                    var c = document.getElementById("canvas_effects");
                    var ctx = c.getContext("2d");
                    ctx.moveTo(0, 0);
                    ctx.strokeStyle = '#ff0000';
                    ctx.lineTo(200, 100);
                    ctx.stroke();
                },
                methods:                        {
               