How to use the defusedxml.lxml._etree.ElementTree function in defusedxml

style_detail[ind] = "font-family:" + font[row]
                style_detail = ';'.join(style_detail)
                text_nodes = path.getchildren()
                path.set("style", style_detail)

                for t in text_nodes:
                    text_style_detail = t.get("style")
                    if text_style_detail is not None:
                        text_style_detail = text_style_detail.split(";")
                        text_style_detail[-1] = "font-family:" + font[row]
                        text_style_detail = ";".join(text_style_detail)
                        t.set("style", text_style_detail)
                    else:
                        t.set("style", "font-family:" + font[row])

        etree.ElementTree(element).write(filename, pretty_print=True)
        print("Font Family Saved!")

for t in text_nodes:
                text_style_detail = t.get("style")
                if text_style_detail is not None:
                    text_style_detail = text_style_detail.split(";")
                    for ind, i in enumerate(text_style_detail):
                        if i.split(':')[0] == 'fill':
                            text_style_detail[ind] = "fill:" + str(logo_fill)
                    text_style_detail = ";".join(text_style_detail)
                    t.set("style", text_style_detail)
                else:
                    t.set("style", "fill:" + str(logo_fill))

            path.set("style", style_detail)

        etree.ElementTree(element).write(filename, pretty_print=True)
        print("Text Fill saved!")

filename = filename.rsplit(".", 1)[0] + '.svg'
    filename = os.path.join(SVGS_FOLDER, filename)
    tree = parse(open(filename, 'r'))
    element = tree.getroot()
    # changing style using XPath.
    path = element.xpath('//*[@id="rect4504"]')[0]
    style_detail = path.get("style")
    style_detail = style_detail.split(";")
    style_detail[0] = "opacity:" + str(opacity)
    style_detail[1] = "fill:" + str(fill)
    style_detail = ';'.join(style_detail)
    path.set("style", style_detail)
    # changing text using XPath.
    path = element.xpath('//*[@id="tspan932"]')[0]
    # Saving in the original XML tree
    etree.ElementTree(element).write(filename, pretty_print=True)
    print("done")
    svg2png(url=filename, write_to=UPLOAD_FOLDER + '/' + png_filename)
    print("Image Saved")

filename = os.path.join(self.APP_ROOT, 'svg', 'user_defined.svg')
        tree = parse(open(filename, 'r'))
        element = tree.getroot()
        # changing style using XPath.
        path = element.xpath('//*[@id="rect4504"]')[0]
        style_detail = path.get("style")
        style_detail = style_detail.split(";")
        style_detail[0] = "opacity:" + str(opacity)
        style_detail[1] = "fill:" + str(fill)
        style_detail = ';'.join(style_detail)
        path.set("style", style_detail)
        # changing text using XPath.
        path = element.xpath('//*[@id="tspan932"]')[0]
        # Saving in the original XML tree
        etree.ElementTree(element).write(filename, pretty_print=True)
        print("done")
        png_name = os.path.join(self.APP_ROOT, 'static', 'uploads', 'image', str(uuid.uuid4())) + ".png"
        svg2png(url=filename, write_to=png_name)

        return png_name

text_nodes = path.getchildren()
                path.set("style", style_detail)

                for t in text_nodes:
                    text_style_detail = t.get("style")
                    if text_style_detail is not None:
                        text_style_detail = text_style_detail.split(";")
                        for ind, i in enumerate(text_style_detail):
                            if i.split(':')[0] == 'font-size':
                                text_style_detail[ind] = "font-size:" + str(font_size[row]) + 'px'
                        text_style_detail = ";".join(text_style_detail)
                        t.set("style", text_style_detail)
                    else:
                        t.set("style", "font-size:" + str(font_size[row]) + 'px')

        etree.ElementTree(element).write(filename, pretty_print=True)
        print("Font Size Saved!")

def remove_extra(badge_page, offset):
    tree = etree.parse(open(badge_page, 'r'))
    root = tree.getroot()
    children = root.findall('.//{http://www.w3.org/2000/svg}g')
    for i in range(offset, len(children)):
        children[i].getparent().remove(children[i])
    etree.ElementTree(root).write(badge_page, pretty_print=True)