class_docstr: Test cases for segment reduction ops.
class_docstr_tok: ["Test","cases","for","segment","reduction","ops","."]
code: def _findDevice(self, device_name):
      devices = device_lib.list_local_devices()
      for d in devices:
          if d.device_type == device_name:
              return True
      return False
  
imports: import functools
  import numpy
  from tensorflow.compiler.tests import xla_test
  from tensorflow.python.client import device_lib
  from tensorflow.python.framework import dtypes
  from tensorflow.python.ops import array_ops
  from tensorflow.python.ops import math_ops
  from tensorflow.python.platform import googletest
label_desc: Use image node_id 1 for calling the SegmentReductionOpsTest obj's underlying member method code with example usage: obj._findDevice(device_name) and returns: False, True