code: def test_dropout_repr(self):
      layer = layers.Dropout(0.5)
      self.assertEqual(
          "Dropout(proba=0.5, name='dropout-1')", str(layer)
      )
  
imports: from scipy import stats
  import numpy
  from neupy import layers
  from neupy.exceptions import LayerConnectionError
  from base import BaseTestCase
label_desc: Use image node_id 3 for calling the DropoutLayerTestCase obj's underlying member method code with example usage: obj.test_dropout_repr() without return types