code: def test_layer_default_name(self):
      input_layer = layers.Input(10)
      output_layer = layers.Sigmoid(1)
  
      self.assertEqual(output_layer.name, "sigmoid-1")
      self.assertEqual(input_layer.name, "input-1")
  
imports: import copy
  import numpy
  import tensorflow
  from neupy import layers, algorithms, init
  from neupy.utils import asfloat
  from neupy.exceptions import LayerConnectionError
  from base import BaseTestCase
label_desc: Use image node_id 2 for calling the LayerNameTestCase obj's underlying member method code with example usage: obj.test_layer_default_name() without return types