text: # Copyright 2021 Alibaba Group Holding Limited. All Rights Reserved.
  #
  # Licensed under the Apache License, Version 2.0 (the "License");
  # you may not use this file except in compliance with the License.
  # You may obtain a copy of the License at
  #
  #     http://www.apache.org/licenses/LICENSE-2.0
  #
  # Unless required by applicable law or agreed to in writing, software
  # distributed under the License is distributed on an "AS IS" BASIS,
  # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  # See the License for the specific language governing permissions and
  # limitations under the License.
  # =============================================================================
  """Test utils."""
  
  from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import os
  import random
  import numpy as np
  import tensorflow as tf
  
  def fix_randomness():
    """Fix model randomness."""
    seed = 123123
    os.environ['TF_CUDNN_DETERMINISTIC'] = '1'
    os.environ['TF_DETERMINISTIC_OPS'] = '1'
    os.environ['PYTHONHASHSEED'] = str(seed)
    random.seed(seed)
    np.random.seed(seed)
    tf.set_random_seed(seed)
  