code: def test_swish(self, seed):
      np.random.seed(seed)
      opname = "Swish"
      regions = [
          [-20.5, -11.0],
          [-11.0, -8.0],
          [-8.0, -1.0],
          [-1.0, -0.1],
          [-1.0 / 8.0, 1.0 / 8.0],
          [1.0 / 8, 5.0],
          [5.0, 8.0],
      ]
      self._test_op_w_ulp_error(
          seed, opname, regions, atol=0.008, err_threshold=384
      )
  
imports: import numpy
  import caffe2.python.fakelowp.init_shared_libs
  import datetime
  from hypothesis import given, settings
  from hypothesis import strategies
  from caffe2.proto import caffe2_pb2
  from caffe2.python import core
  from caffe2.python import workspace
  from caffe2.python.onnx.onnxifi import onnxifi_caffe2_net
  from caffe2.python.fakelowp.test_utils import print_test_debug_info
  from caffe2.python.fakelowp.test_utils import compute_ulp_error
  import caffe2.python.serialized_test.serialized_test_util
label_desc: Use image node_id 5 for calling the UnaryOpTest obj's underlying member method code with example usage: obj.test_swish(seed) without return types