class_docstr: Randomly adjust saturation.
  Follows the implementation in `fb.resnet.torch
  <https://github.com/facebook/fb.resnet.torch/blob/master/datasets/transforms.lua#L218>`__.
class_docstr_tok: ["Randomly","adjust","saturation",".","Follows","the","implementation","in","`","fb.resnet.torch","<","https",":","\/\/github.com\/facebook\/fb.resnet.torch\/blob\/master\/datasets\/transforms.lua","#","L218",">","`","__","."]
code: def _get_augment_params(self, _):
      return 1 + self._rand_range(-self.alpha, self.alpha)
  
imports: import numpy
  import cv2
  from ...utils.develop import log_deprecated
  from .base import PhotometricAugmentor
label_desc: Use image node_id 2 for calling the Saturation obj's underlying member method code with example usage: obj._get_augment_params(_) and returns: unknown