Survey Lift specific flight configuration.

[Proto definition ![GitHub](https://developers.google.com/site-assets/logo-github.svg)](https://github.com/googleapis/googleapis/blob/master/google/ads/googleads/v25/resources/lift_measurement_flight.proto)

| Fields ||
|---|---|
| ## `target_response_mode` | `https://developers.google.com/google-ads/api/reference/rpc/v25/SurveyLiftFlightTargetResponseModeEnum.SurveyLiftFlightTargetResponseMode` Output only. The target response mode that will be used to collect survey responses. |