code: def sample_asym(magnitude, size=None):
      return np.random.beta(1, 4, size) * magnitude
  
imports: import math
  import numbers
  import random
  import cv2
  import numpy
  from paddle.vision.transforms import Compose, ColorJitter
label_desc: Use image node_id 1 for calling a global function with example usage: sample_asym(magnitude, size) and returns: unknown