code: def setUp(self):
      super(PlotsTestCase, self).setUp()
      self.network = layers.join(
          layers.Input(10),
          layers.Sigmoid(20),
          layers.Sigmoid(1),
      )
  
file_path: neupy/tests/algorithms/test_plots.py
imports: import warnings
  import mock
  import pytest
  import matplotlib.pyplot
  from neupy import algorithms, layers
  from neupy.algorithms.plots import load_pandas_module
  from helpers import simple_classification
  from base import BaseTestCase
label_desc: Use image node_id 1 for calling the PlotsTestCase obj's underlying member method code with example usage: obj.setUp() without return types