old_contents: __author__ = 'rande'
  
  class JinjaHelper(object):
      def __init__(self, container):
          self.container = container
  
      def get_parameter(self, name, default=None):
          if self.container.parameters.has(name):
              return self.container.parameters.get(name)
  
          return default
new_contents: #
  # Copyright 2014 Thomas Rabaix <thomas.rabaix@gmail.com>
  #
  # 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.
  
  class JinjaHelper(object):
      def __init__(self, container):
          self.container = container
  
      def get_parameter(self, name, default=None):
          if self.container.parameters.has(name):
              return self.container.parameters.get(name)
  
          return default
subject: add missing licence header