code: def test_unsorted_segment_ops_gpu(self):
      SegmentsTester()._test(
          "UnsortedSegment",
          hu.segmented_tensor(
              dtype=np.float32,
              is_sorted=False,
              allow_empty=True,
          ),
          REFERENCES_ALL,
          gpu=workspace.has_gpu_support,
          grad_check=False,
      )(self)
  
imports: from functools import partial
  from hypothesis import given, settings
  import numpy
  import unittest
  import hypothesis.strategies
  from caffe2.python import core, workspace
  import caffe2.python.hypothesis_test_util
  import caffe2.python.serialized_test.serialized_test_util
label_desc: Use image node_id 3 for calling the TestSegmentOps obj's underlying member method code with example usage: obj.test_unsorted_segment_ops_gpu() without return types