class_docstr: Pixelwise SoftMax activation function.
  Computes the function f(x_k) = exp(x_k) / sum_i(exp(x_i))
code: def bprop(self, x):
      return 1
  
imports: from __future__ import division
  from neon.transforms.transform import Transform
label_desc: Use image node_id 3 for calling the PixelwiseSoftmax obj's underlying member method code with example usage: obj.bprop(x) and returns: int