code: def test_graph_predictions(self):
      network = layers.join(
          layers.Input(10),
          layers.Relu(5),
          layers.Relu(3),
      )
  
      input = np.random.random((100, 10))
      output = network.predict(input, verbose=False)
      self.assertEqual(output.shape, (100, 3))
  
      output = network.predict(input, batch_size=10, verbose=False)
      self.assertEqual(output.shape, (100, 3))
  
      with self.assertRaisesRegexp(TypeError, "Unknown arguments"):
          network.predict(input, batchsize=10)
  
file_path: neupy/tests/layers/graph/test_usage.py
imports: import numpy
  from neupy import layers
  from neupy.utils import asfloat
  from base import BaseTestCase
label_desc: Use image node_id 8 for calling the UsageTestCase obj's underlying member method code with example usage: obj.test_graph_predictions() without return types