code: def test_storage_pickle_save_conection_from_network(self):
      network = algorithms.GradientDescent(
          [
              layers.Input(10),
              layers.Sigmoid(5),
              layers.Sigmoid(2),
          ]
      )
  
      with tempfile.NamedTemporaryFile() as temp:
          storage.save_pickle(network, temp.name)
          temp.file.seek(0)
  
          filesize_after = os.path.getsize(temp.name)
          self.assertGreater(filesize_after, 0)
  
file_path: neupy/tests/storage/test_pickle_storage.py
imports: import os
  import tempfile
  import numpy
  from neupy import algorithms, layers, storage
  from neupy.utils import asfloat
  from neupy.exceptions import StopTraining
  from base import BaseTestCase
  from helpers import simple_classification
label_desc: Use image node_id 1 for calling the LayerStoragePickleTestCase obj's underlying member method code with example usage: obj.test_storage_pickle_save_conection_from_network() without return types