code: def __init__(self, transform=lambda b: b):
      self.id = uuid.uuid4()
      self.transform = transform
  
file_path: ray/python/ray/train/tests/dummy_preprocessor.py
imports: import uuid
  from ray.data.preprocessor import Preprocessor
label_desc: Use image node_id 1 to create a new DummyPreprocessor object from inherited base classes: Preprocessor with example: obj = DummyPreprocessor(transform)