class_docstr: Compose several preprocess together.
  Args:
      preprocess (list of ``Preprocess`` objects): list of preprocess to compose.
code: def __init__(self, preprocess):
      self.preprocess = preprocess
  
imports: import random
  import cv2
  import numpy
  import torch
  from scipy import signal
label_desc: Use image node_id 1 to create a new Compose object from inherited base classes: object with example: obj = Compose(preprocess)