old_contents: import time
  import datetime
  
  
  class Time(object):
  
      def timestamp(self):
          return time.time()
  
      def datetime(self):
          dt = datetime.datetime.now()
          retval = {
              'century': dt.year // 100,
              'year': dt.year % 100,
              'month': dt.month,
              'day': dt.day,
              'hour': dt.hour,
              'minute': dt.minute,
              'second': dt.second,
              'timezone': None
          }
          return retval
  
      def strftime(self, formating):
          return time.strftime(formating, time.gmtime())
  
  
  def register(node = None, actor = None):
      return Time()
  
new_contents: # -*- coding: utf-8 -*-
  
  # Copyright (c) 2017 Ericsson AB
  #
  # 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.
  
  import time
  import datetime
  
  
  class Time(object):
  
      def timestamp(self):
          return time.time()
  
      def datetime(self):
          dt = datetime.datetime.now()
          retval = {
              'century': dt.year // 100,
              'year': dt.year % 100,
              'month': dt.month,
              'day': dt.day,
              'hour': dt.hour,
              'minute': dt.minute,
              'second': dt.second,
              'timezone': None
          }
          return retval
  
      def strftime(self, formating):
          return time.strftime(formating, time.gmtime())
  
  
  def register(node = None, actor = None):
      return Time()
  
subject: add missing file header