code: def test_lambda_layer(self):
      def keras_block(x):
          x = keras.layers.Dropout(0.8)(x)
          x = keras.layers.Dense(100, activation="relu")(x)
          # x = keras.layers.Dropout(0.8)(x)
          # x = keras.layers.Dense(100, activation='relu')(x)
          x = keras.layers.Dropout(0.5)(x)
          logits = keras.layers.Dense(10, activation="linear")(x)
  
          return logits
  
      with self.assertNotRaises(Exception):
          tl.layers.LambdaLayer(
              self.net_in["lambda"], fn=keras_block, name="keras"
          )
  
file_path: TensorLayer/tests/pending/test_layers_importer.py
imports: import os
  import unittest
  import tensorflow
  from tensorflow.contrib.slim.python.slim.nets.inception_v3 import inception_v3, inception_v3_arg_scope
  import tensorlayer
  from tests.utils import CustomTestCase
label_desc: Use image node_id 3 for calling the Layer_Importer_Test obj's underlying member method code with example usage: obj.test_lambda_layer() and returns: logits