code: func (h *Client) ProductImpressionListName(productImpressionListName string) *Client {
  	h.productImpressionListName = productImpressionListName
  	h.productImpressionListNameSet = true
  	return h
  }
docs: // The list or collection to which a product belongs. Impression
  // List index must be a positive integer between 1 and 200,
  // inclusive. For analytics.js the Enhanced Ecommerce plugin
  // must be installed before using this field.