# UltracartClient::ResponseMetadata ## Properties | Name | Type | Description | Notes | | ---- | ---- | ----------- | ----- | | **payload_name** | **String** | Payload name | [optional] | | **result_set** | [**ResultSet**](ResultSet.md) | | [optional] | ## Example ```ruby require 'ultracart_api' instance = UltracartClient::ResponseMetadata.new( payload_name: null, result_set: null ) ```