code: def CreateCustomizerFeedItems(client, adgroup_ids, ad_customizer_feed):
    
    # Get the FeedItemService
    feed_item_service = client.GetService('FeedItemService', 'v201809')
    now = datetime.now()
    mars_date = datetime(now.year, now.month, 1, 0, 0)
    venus_date = datetime(now.year, now.month, 15, 0, 0)
    time_format = '%Y%m%d %H%M%S'
  
    feed_item_operations = [
        CreateFeedItemAddOperation(
            'Mars', '$1234.56', mars_date.strftime(time_format),
            ad_customizer_feed),
        CreateFeedItemAddOperation(
            'Venus', '$1450.00', venus_date.strftime(time_format),
            ad_customizer_feed)
    ]
  
    response = feed_item_service.mutate(feed_item_operations)
  
    if 'value' in response:
      for feed_item in response['value']:
        print 'Added FeedItem with ID %d.' % feed_item['feedItemId']
    else:
      raise errors.GoogleAdsError('No FeedItems were added.')
  
    for feed_item, adgroup_id in zip(response['value'], adgroup_ids):
      RestrictFeedItemToAdGroup(client, feed_item, adgroup_id)
docs: Creates FeedItems for the specified AdGroups.
  
    These FeedItems contain values to use in ad customizations for the AdGroups.
  
    Args:
      client: an AdWordsClient instance.
      adgroup_ids: a list containing two AdGroup Ids.
      ad_customizer_feed: the AdCustomizerFeed we're associating the FeedItems
          with.
  
    Raises:
      GoogleAdsError: if no FeedItems were added.