class_docstr: Randomly choose one from a list of augmentors 
class_docstr_tok: ["Randomly","choose","one","from","a","list","of","augmentors"]
code: def get_transform(self, img):
      aug_idx = self.rng.choice(len(self.aug_lists), p=self.prob)
      return self.aug_lists[aug_idx].get_transform(img)
  
imports: from .base import ImageAugmentor
  from .transform import NoOpTransform, TransformList, TransformFactory
label_desc: Use image node_id 3 for calling the RandomChooseAug obj's underlying member method code with example usage: obj.get_transform(img) and returns: self