code: def setUp(self):
      if self.dtype == numpy.float16:
          self.check_forward_options.update(
              {"atol": 1e-3, "rtol": 1e-3}
          )
          self.check_backward_options.update(
              {"atol": 5e-4, "rtol": 5e-3}
          )
          self.check_double_backward_options.update(
              {"atol": 5e-3, "rtol": 5e-2}
          )
  
file_path: chainer/tests/chainer_tests/functions_tests/math_tests/test_linear_interpolate.py
imports: import numpy
  from chainer import functions
  from chainer import testing
  from chainer import utils
label_desc: Use image node_id 1 for calling the TestLinearInterpolate obj's underlying member method code with example usage: obj.setUp() without return types