code: def setUp(self):
      self.check_backward_options = {"atol": 1e-2, "rtol": 1e-2}
      self.check_double_backward_options = {"atol": 1e-2, "rtol": 1e-2}
      if self.x_dtype == numpy.float16:
          self.check_forward_options = {"atol": 1e-3, "rtol": 1e-2}
      self.n_batch_axes = self.x_shape["n_batch_axes"]
  
imports: import unittest
  import numpy
  import pytest
  import chainer
  from chainer import functions
  from chainer import testing
  from chainer.testing import backend
label_desc: Use image node_id 1 for calling the TestNonparameterizedLinear obj's underlying member method code with example usage: obj.setUp() without return types