# DatadogAPIClient::V1::ListStreamQuery ## Properties | Name | Type | Description | Notes | | ---------------- | ------------------------------------------- | ---------------- | ----------------------------------- | | **data_source** | [**ListStreamSource**](ListStreamSource.md) | | [default to 'issue_stream'] | | **indexes** | **Array<String>** | List of indexes. | [optional] | | **query_string** | **String** | Widget query. | | ## Example ```ruby require 'datadog_api_client/v1' instance = DatadogAPIClient::V1::ListStreamQuery.new( data_source: null, indexes: null, query_string: @service:app ) ```