text: #   Copyright (c) 2021 PaddlePaddle Authors. 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.
  """utils"""
  
  from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  
  import time
  
  
  def visualdl_log(metrics_output, train_loss, steps, phase):
      """log visualization
      """
      print("{phase} log: steps {steps}, loss {loss}, metrics: {metrics}".format(
          phase=phase, steps=steps, loss=train_loss, metrics=metrics_output))
  
  
  def print_eval_log(ret):
      """print log"""
      prefix_log = "[%s evaluation] ave loss: %.4f," % (ret['phase'], ret['loss'])
      postfix_log = "data_num: %d, elapsed time: %.4f s" % (ret['data_num'], ret['used_time'])
      mid_log = " "
      for k, v in ret.items():
          if k not in ['phase', 'loss', 'data_num', 'used_time', 'key_eval']:
              mid_log = mid_log + "%s: %.4f, " % (k, round(v, 4))
      log = prefix_log + mid_log + postfix_log
      print(log)
  
  
  def get_time():
      """get time"""
      res = time.strftime('%Y-%m-%d %H:%M:%S', time.localtime(time.time()))
      return res
  