docs: def add_values_to_bundle_safe(connection, bundle, values):
      """
      Adds values to specified bundle. Checks, whether each value already contains in bundle. If yes, it is not added.
  
      Args:
          connection: An opened Connection instance.
          bundle: Bundle instance to add values in.
          values: Values, that should be added in bundle.
  
      Raises:
          YouTrackException: if something is wrong with queries.
      """
      for value in values:
          try:
              connection.addValueToBundle(bundle, value)
          except YouTrackException as e:
              if e.response.status == 409:
                  print("Value with name [ %s ] already exists in bundle [ %s ]" %
                        (utf8encode(value.name), utf8encode(bundle.name)))
              else:
                  raise e