# KlaviyoAPI::IsSetExistenceFilter ## Properties | Name | Type | Description | Notes | | ---- | ---- | ----------- | ----- | | **type** | [**ExistenceEnum**](ExistenceEnum.md) | | | | **operator** | [**IsSetEnum**](IsSetEnum.md) | | | ## Example ```ruby require 'klaviyo-api-sdk' instance = KlaviyoAPI::IsSetExistenceFilter.new( type: null, operator: null ) ```