I have the following python function: ```python def resize_images(images, res_x, res_y): resized_images = np.zeros((images.shape[0], res_x, res_y)) for n in range(len(images)): resized_images[n, :, :] = resize(images[n, :, :], resized_images.shape[1:], anti_aliasing=False) return resized_images ``` What does the function do?