code: def test_repeat_once(self):
      input_layer = layers.Relu(10)
      output_layer = layers.repeat(input_layer, n=1)
      self.assertIs(output_layer, input_layer)
  
imports: import numpy
  from neupy import layers
  from neupy.utils import asfloat
  from neupy.exceptions import LayerConnectionError
  from base import BaseTestCase
label_desc: Use image node_id 5 for calling the RepeatArchitectureTestCase obj's underlying member method code with example usage: obj.test_repeat_once() without return types