def fill_zero(x: np.array, rect: Rectangle):
assert isinstance(rect, (Shape, list, tuple, set))
if isinstance(rect, Shape):
upper, lower, left, right = rect.get_upper(), rect.get_lower(
), rect.get_left(), rect.get_right()
if len(x.shape) == 3:
x[upper:lower, left:right, :] = 0
else:
x[upper:lower, left:right] = 0
else:
for r in rect:
fill_zero(x, r)
