code: def test_layer_name_using_complex_pattern(self):
      layer = layers.Relu(name="rl{:>04d}")
      self.assertEqual(layer.name, "rl0001")
  
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 9 for calling the LayerNameTestCase obj's underlying member method code with example usage: obj.test_layer_name_using_complex_pattern() without return types