def redraw(arr):
while len(arr.shape) > 2:
arr = arr[0]
arr = arr.detach().numpy()
arr = (arr - arr.min()) / (arr.max() - arr.min()) * 255
arr = arr.astype(numpy.uint8)
img = Image.fromarray(arr, "L")
buffered = BytesIO()
img.save(buffered, format="PNG")
b = base64.b64encode(buffered.getvalue())
s = b.decode("utf8")
fill_at(divid, H.img(src=f"data:image/png;base64,{s}"))
def test_voids():
assert matches(H.area(), "<area />")
assert matches(H.base(), "<base />")
assert matches(H.br(), "<br />")
assert matches(H.col(), "<col />")
assert matches(H.command(), "<command />")
assert matches(H.embed(), "<embed />")
assert matches(H.hr(), "<hr />")
assert matches(H.img(), "<img />")
assert matches(H.input(), "<input />")
assert matches(H.keygen(), "<keygen />")
assert matches(H.link(), "<link />")
assert matches(H.meta(), "<meta />")
assert matches(H.param(), "<param />")
assert matches(H.source(), "<source />")
assert matches(H.track(), "<track />")
assert matches(H.wbr(), "<wbr />")
