code: def _base_test_net(self):
      net = core.Net("net")
      net.Conv(
          ["X", "w", "b"],
          ["Y"],
          stride=1,
          pad=0,
          kernel=3,
          order="NCHW",
      )
      return net
  
imports: from hypothesis import given
  import hypothesis.strategies
  import numpy
  import unittest
  from caffe2.python.transformations import Transformer
  from caffe2.python import core, workspace
  from caffe2.python import test_util
label_desc: Use image node_id 1 for calling the TestTransformations obj's underlying member method code with example usage: obj._base_test_net() and returns: net