code: def test_empty(self, value):
      net = sequential.Sequential()
      self.assertIs(net(value), value)
  
file_path: sonnet/sonnet/src/sequential_test.py
imports: from absl.testing import parameterized
  from sonnet.src import sequential
  from sonnet.src import test_utils
  import tensorflow
label_desc: Use image node_id 1 for calling the SequentialTest obj's underlying member method code with example usage: obj.test_empty(value) without return types