class_docstr: decode image 
class_docstr_tok: ["decode","image"]
code: def __init__(self, img_mode="RGB", channel_first=False, **kwargs):
      self.img_mode = img_mode
      self.channel_first = channel_first
  
imports: import numpy
  import paddle
  import os
  import cv2
  import glob
label_desc: Use image node_id 1 to create a new DecodeImage object from inherited base classes: object with example: obj = DecodeImage(img_mode, channel_first)