code: def test_tensor_float_32_global_variable(self):
      self.assertTrue(config.tensor_float_32_execution_enabled())
      self.assertTrue(test_ops.is_tensor_float32_enabled())
      config.enable_tensor_float_32_execution(False)
      self.assertFalse(config.tensor_float_32_execution_enabled())
      self.assertFalse(test_ops.is_tensor_float32_enabled())
      config.enable_tensor_float_32_execution(True)
      self.assertTrue(config.tensor_float_32_execution_enabled())
      self.assertTrue(test_ops.is_tensor_float32_enabled())
  
imports: from absl.testing import parameterized
  from tensorflow.core.protobuf import cluster_pb2
  from tensorflow.core.protobuf import config_pb2
  from tensorflow.core.protobuf import rewriter_config_pb2
  from tensorflow.core.protobuf import tensorflow_server_pb2
  from tensorflow.python.eager import context
  from tensorflow.python.eager import def_function
  from tensorflow.python.framework import config
  from tensorflow.python.framework import constant_op
  from tensorflow.python.framework import dtypes
  from tensorflow.python.framework import errors
  from tensorflow.python.framework import ops
  from tensorflow.python.framework import test_ops
  from tensorflow.python.framework import test_util
  from tensorflow.python.ops import array_ops
  from tensorflow.python.ops import math_ops
  from tensorflow.python.platform import test
  from tensorflow.python.util import compat
label_desc: Use image node_id 2 for calling the TensorFloat32Test obj's underlying member method code with example usage: obj.test_tensor_float_32_global_variable() without return types