Extract previews from vectormagic.com as SVG files

vectormagic.js

VecResult.prototype.toSVG = function() {
    let paths = [];

    this.pieces.forEach(piece => {
        let index = 0;

        piece.shapes.forEach(shape => {
            let commands = [];

            shape.lenghts.forEach(length => {
                commands.push(`M ${piece.floats[index++]} ${piece.floats[index++]}`);

                for (let i = 0; i < (length - 2) / 6; i++) {
                    commands.push(`C ${piece.floats[index++]} ${piece.floats[index++]} ${piece.floats[index++]} ${piece.floats[index++]} ${piece.floats[index++]} ${piece.floats[index++]}`);
                }

                commands.push("Z");
            });

            paths.push(`    <path d="${commands.join(" ")}" fill="${shape.color}"/>`);
        });
    });

    return `<svg width="${this.imageWidth}" height="${this.imageHeight}" xmlns="http://www.w3.org/2000/svg">
${paths.join("\n")}
</svg>
`;
};

How to use it?