code: def test_lisht(dtype):
      x = tf.constant([-2.0, -1.0, 0.0, 1.0, 2.0], dtype=dtype)
      expected_result = tf.constant(
          [1.9280552, 0.7615942, 0.0, 0.7615942, 1.9280552], dtype=dtype
      )
      test_utils.assert_allclose_according_to_type(
          lisht(x), expected_result
      )
  
imports: import pytest
  import numpy
  import tensorflow
  from tensorflow_addons.activations import lisht
  from tensorflow_addons.utils import test_utils
label_desc: Use image node_id 1 for calling a global function with example usage: test_lisht(dtype) without return types