code: def _supported_key_types(self):
      supported_key_types = set(ALL_KEY_TYPES)
      res = supported_key_types.intersection(self.numeric_types)
      assert res
      return res
  
imports: import unittest
  from absl.testing import parameterized
  import numpy
  from tensorflow.compiler.tests import xla_test
  from tensorflow.compiler.tf2xla.python import xla
  from tensorflow.python.framework import dtypes
  from tensorflow.python.framework import function
  from tensorflow.python.framework import tensor
  from tensorflow.python.framework import test_util
  from tensorflow.python.ops import array_ops
  from tensorflow.python.ops import math_ops
  from tensorflow.python.ops import nn_ops
  from tensorflow.python.ops import sort_ops
  from tensorflow.python.platform import test
label_desc: Use image node_id 3 for calling the XlaSortOpTest obj's underlying member method code with example usage: obj._supported_key_types() and returns: res