How to use the svelte/internal.attr function in svelte

h() {
			if (img.src !== (img_src_value = "donuts.jpg")) attr(img, "src", img_src_value);
			attr(img, "alt", "donuts");
		},
		m(target, anchor) {

c() {
			a = element("a");
			a.textContent = "Test";
			attr(a, "href", "#");
			dispose = action_destroyer(link_action = link.call(null, a));
		},
		m(target, anchor) {

c() {
			input0 = element("input");
			t = space();
			input1 = element("input");
			attr(input0, "type", "file");
			attr(input1, "type", "file");

			dispose = [
				listen(input0, "change", /*input0_change_handler*/ ctx[1]),
				listen(input1, "change", /*input1_change_handler*/ ctx[2])
			];
		},
		m(target, anchor) {

c() {
			meta0 = element("meta");
			meta1 = element("meta");
			attr(meta0, "name", "twitter:creator");
			attr(meta0, "content", "@sveltejs");
			attr(meta1, "name", "twitter:title");
			attr(meta1, "content", "Svelte");
		},
		m(target, anchor) {

c() {
			div = element("div");
			attr(div, "class", "svelte-1slhpfn");
		},
		m(target, anchor) {

p(ctx, [dirty]) {
			if (dirty & /*bar*/ 1) {
				attr(div1, "data-foo", /*bar*/ ctx[0]);
			}
		},
		i: noop,

h() {
			attr(img0, "alt", "potato");
			if (img0.src !== (img0_src_value = ctx[0])) attr(img0, "src", img0_src_value);
			attr(img1, "alt", "potato");
			if (img1.src !== (img1_src_value = "" + (ctx[1] + ".jpg"))) attr(img1, "src", img1_src_value);
		},
		m(target, anchor) {

c() {
			div = element("div");
			attr(div, "class", "divider");
		},
		m(target, anchor) {

c() {
			div0 = element("div");
			t = space();
			div1 = element("div");
			attr(div0, "style", ctx[0]);
			attr(div1, "style", div1_style_value = "" + (ctx[1] + ": " + ctx[2]));
		},
		m(target, anchor) {

c() {
			input = element("input");
			attr(input, "type", "checkbox");
			dispose = listen(input, "change", ctx[1]);
		},
		m(target, anchor) {