code: def __init__(
      self, start_value=0, end_value=1, start_iter=-1, end_iter=0
  ):
      self.start_value = start_value
      self.end_value = end_value
      self.start_iter = start_iter
      self.end_iter = end_iter
  
imports: import math
  import random
  import hashlib
  import logging
  from enum import Enum
  import cv2
  import numpy
label_desc: Use image node_id 1 to create a new LinearRamp object  with example: obj = LinearRamp(start_value, end_value, start_iter, end_iter)