dev(narugo): add docs for lpips module

@_mock_load_truncated_images(True)

def image_plot(*images, save_as: str, columns=2, keep_axis: bool = False):

def image_plot(*images, save_as: str, columns=2, keep_axis: bool = False, figsize=(6, 6)):

    plt.cla()

    plt.tight_layout()

    assert images, 'No less than 1 images required.'

    n = len(images)

    rows = (n + columns - 1) // columns

    fig, axs = plt.subplots(rows, columns)

    fig, axs = plt.subplots(rows, columns, figsize=figsize)

    plt.subplots_adjust(wspace=0.2, hspace=0.15)

    for i, img in enumerate(images, start=0):

        xi, yi = i // columns, i % columns

        image, label = _image_input_process(img)

        ax = axs[yi] if rows == 1 else axs[xi, yi]

        ax.axis('off')

    plt.savefig(save_as, bbox_inches='tight', pad_inches=0.1, dpi=200, transparent=True)

    plt.savefig(save_as, bbox_inches='tight', pad_inches=0.1, dpi=300, transparent=True)