code: def forward(self, x):
      z = self.dropout1(x)
      z = self.seq(z)
      z = self.dropout3(z)
      return z
  
file_path: TensorLayer/examples/basic_tutorials/tutorial_mnist_mlp_dynamic_2.py
imports: import time
  import numpy
  import tensorflow
  import tensorlayer
  from tensorlayer.layers import Dense, Dropout, Input, LayerList
  from tensorlayer.models import Model
label_desc: Use image node_id 2 for calling the CustomModelHidden obj's underlying member method code with example usage: obj.forward(x) and returns: z