code: def setUp(self):
      self.t1 = tensor.Tensor((40, 90))
      self.t2 = tensor.Tensor((30, 50, 8))
      self.t3 = tensor.Tensor((30, 50, 4, 8))
  
file_path: singa/test/python/test_initializer.py
imports: from singa import initializer
  from singa import tensor
  from singa import singa_wrap
  from cuda_helper import gpu_dev, cpu_dev
  import unittest
  import numpy
label_desc: Use image node_id 1 for calling the TestInitializer obj's underlying member method code with example usage: obj.setUp() without return types