code: def setUp(self):
      args, kwargs = self.mlpconv_args
      self.mlp = links.MLPConvolution2D(*args, **kwargs)
      self.x = numpy.zeros((10, 3, 20, 20), dtype=numpy.float32)
  
imports: import unittest
  import mock
  import numpy
  import chainer
  from chainer.backends import cuda
  from chainer import functions
  from chainer import links
  from chainer import testing
  from chainer.testing import attr
label_desc: Use image node_id 1 for calling the TestMLPConvolution2DShapePlaceholder obj's underlying member method code with example usage: obj.setUp() without return types