class_docstr: Clipped Rectifier Unit gradient function.
code: def __init__(self, x, z):
      self.x = x
      self.cap = z
  
imports: import numpy
  import chainer
  from chainer.backends import cuda
  from chainer import function_node
  from chainer import utils
  from chainer.utils import type_check
  import chainerx
label_desc: Use image node_id 1 to create a new ClippedReLUGrad2 object from inherited base classes: function_node with example: obj = ClippedReLUGrad2(x, z)