code: def test_box_space_spec(self):
      box_space = Box(low=0, high=10, shape=[5, 6], dtype=np.float32)
      spec = gym_spaces_utils.gym_space_spec(box_space)
      self.assertIsInstance(spec, tf.FixedLenFeature)
      self.assertEqual(spec.dtype, tf.float32)
      self.assertListEqual(list(spec.shape), [5, 6])
  
file_path: tensor2tensor/tensor2tensor/envs/gym_spaces_utils_test.py
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  from gym.spaces import Box
  from gym.spaces import Discrete
  import numpy
  from tensor2tensor.envs import gym_spaces_utils
  import tensorflow.compat.v1
label_desc: Use image node_id 2 for calling the GymSpacesUtilsTest obj's underlying member method code with example usage: obj.test_box_space_spec() without return types