code: def _rand_image(shape=(20, 20)):
      return np.random.rand(*shape).astype("float32")
  
imports: import sys
  import numpy
  import cv2
  import unittest
  from .base import ImageAugmentor, AugmentorList
  from .imgproc import Contrast
  from .noise import SaltPepperNoise
  from .misc import Flip, Resize
label_desc: Use image node_id 1 for calling a global function with example usage: _rand_image(shape) and returns: np