Can someone please tell me why canvas.toDataURL() shows [object Promise]? I want to load a node-canvas image on my website with an image tag in HTML. Here is my code:

Handlebars.registerHelper('updateImage', async function (id, user) {
    const welcome = new Keyv(`sqlite://data/welcome/${id}.sqlite`);
    const bgimg = await welcome.get('canvas-join-bgimg') ? await welcome.get('canvas-join-bgimg') : `https://i.imgur.com/XMPcnz1.jpeg`;

    const Canvas = require('canvas');

    const background = await Canvas.loadImage(bgimg);
    const avatardash = await Canvas.loadImage(user.displayAvatarURL({
        dynamic: true,
        size: 1024
    }));

    const canvas = Canvas.createCanvas(700, 250);
    const context = canvas.getContext('2d');

    context.drawImage(background, 0, 0, canvas.width, canvas.height);

    return new Handlebars.SafeString(
        '<img src='
        ' + canvas.toDataURL() + '
        ' />'
    );
});

Sorry, but I'm still learning, and I do not see anything of this on the web.

EDIT: Here you can see the result on my website:

Any assistance would be greatly appreciated. Thank you.