class_docstr: Convert color space from LAB to RGB.
class_docstr_tok: ["Convert","color","space","from","LAB","to","RGB","."]
code: def __init__(self, mode: str = "RGB2LAB"):
      self.mode = mode
  
imports: import random
  from typing import Callable, Union, List, Tuple
  import cv2
  import PIL
  import numpy
  import paddlehub.vision.functional
label_desc: Use image node_id 1 to create a new LAB2RGB object  with example: obj = LAB2RGB(mode)