code: def to_cloudformation(self, **kwargs):
          
          function = kwargs.get('function')
  
          if not function:
              raise TypeError("Missing required keyword argument: function")
  
          resources = []
  
          events_rule = EventsRule(self.logical_id)
          resources.append(events_rule)
  
          events_rule.ScheduleExpression = self.Schedule
          events_rule.Targets = [self._construct_target(function)]
  
          source_arn = events_rule.get_runtime_attr("arn")
          if CONDITION in function.resource_attributes:
              events_rule.set_resource_attribute(CONDITION, function.resource_attributes[CONDITION])
          resources.append(self._construct_permission(function, source_arn=source_arn))
  
          return resources
docs: Returns the CloudWatch Events Rule and Lambda Permission to which this Schedule event source corresponds.
  
          :param dict kwargs: no existing resources need to be modified
          :returns: a list of vanilla CloudFormation Resources, to which this pull event expands
          :rtype: list