code: def forward(self, argument, device=None, outputs_to_retain=None):
      sigmoid_x = 1 / (1 + np.exp(-argument))
  
      return sigmoid_x, sigmoid_x
  
imports: from __future__ import division, print_function
  import numpy
  import cntk
  from cntk.ops.tests.ops_test_utils import cntk_device, mem_used, os_process
  from cntk.ops.functions import UserFunction
  from cntk import sigmoid
label_desc: Use image node_id 2 for calling the MySigmoid obj's underlying member method code with example usage: obj.forward(argument, device, outputs_to_retain) and returns: sigmoid_x,  sigmoid_x