code: def _get_augment_params(self, _):
      v = self._rand_range(-self.delta, self.delta)
      return v
  
imports: import sys
  import numpy
  import cv2
  import unittest
  from .base import ImageAugmentor, AugmentorList
  from .imgproc import Contrast
  from .noise import SaltPepperNoise
  from .misc import Flip, Resize
label_desc: Use image node_id 2 for calling the LegacyBrightness obj's underlying member method code with example usage: obj._get_augment_params(_) and returns: v