old_contents: # -*- coding: utf-8 -*-
  # Licensed to the StackStorm, Inc ('StackStorm') under one or more
  # contributor license agreements.  See the NOTICE file distributed with
  # this work for additional information regarding copyright ownership.
  # The ASF licenses this file to You 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 six
  
  __all__ = [
      'to_unicode'
  ]
  
  
  def to_unicode(value):
      """
      Ensure that the provided text value is represented as unicode.
  
      :param value: Value to convert.
      :type value: ``str`` or ``unicode``
  
      :rtype: ``unicode``
      """
      if not isinstance(value, six.string_types):
          raise ValueError('Value "%s" must be a string.' % (value))
  
      if not isinstance(value, six.text_type):
          value = six.u(value)
  
      return value
  
new_contents: # -*- coding: utf-8 -*-
  # Licensed to the StackStorm, Inc ('StackStorm') under one or more
  # contributor license agreements.  See the NOTICE file distributed with
  # this work for additional information regarding copyright ownership.
  # The ASF licenses this file to You 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 six
  
  __all__ = [
      'to_unicode',
      'to_ascii'
  ]
  
  
  def to_unicode(value):
      """
      Ensure that the provided text value is represented as unicode.
  
      :param value: Value to convert.
      :type value: ``str`` or ``unicode``
  
      :rtype: ``unicode``
      """
      if not isinstance(value, six.string_types):
          raise ValueError('Value "%s" must be a string.' % (value))
  
      if not isinstance(value, six.text_type):
          value = six.u(value)
  
      return value
  
  
  def to_ascii(value):
      """
      Function which encodes the provided bytes / string to ASCII encoding ignoring any errors
      which could come up when trying to encode a non-ascii value.
      """
      return value.decode('ascii', errors='ignore')
  
subject: Add missing line.