code: def AddTemplate(self, template, parameters):
          '''Load a template into the mock.
          python-dbusmock ships a set of standard mocks for common system
          services such as UPower and NetworkManager. With these the actual tests
          become a lot simpler, as they only have to set up the particular
          properties for the tests, and not the skeleton of common properties,
          interfaces, and methods.
          template: Name of the template to load or the full path to a *.py file
                    for custom templates. See "pydoc dbusmock.templates" for a
                    list of available templates from python-dbusmock package, and
                    "pydoc dbusmock.templates.NAME" for documentation about
                    template NAME.
          parameters: A parameter (string) → value (variant) map, for
                      parameterizing templates. Each template can define their
                      own, see documentation of that particular template for
                      details.
          '''
          try:
              module = load_module(template)
          except ImportError as e:
              raise dbus.exceptions.DBusException('Cannot add template %s: %s' % (template, str(e)),
                                                  name='org.freedesktop.DBus.Mock.TemplateError')
          if hasattr(module, 'IS_OBJECT_MANAGER') and module.IS_OBJECT_MANAGER:
              self._set_up_object_manager()
          for symbol in dir(module):
              fn = getattr(module, symbol)
              if ('_dbus_interface' in dir(fn) and ('_dbus_is_signal' not in dir(fn) or not fn._dbus_is_signal)):
                  setattr(self.__class__, symbol, fn)
                  self.methods.setdefault(fn._dbus_interface, {})[str(symbol)] = (
                      fn._dbus_in_signature,
                      fn._dbus_out_signature, '', fn
                  )
          if parameters is None:
              parameters = {}
          module.load(self, parameters)
          self._template = template
          self._template_parameters = parameters