Response message containing the generated reach curve.

[Proto definition ![GitHub](https://developers.google.com/site-assets/logo-github.svg)](https://github.com/googleapis/googleapis/blob/master/google/ads/googleads/v26/services/reach_plan_service.proto)

| Fields ||
|---|---|
| ## `on_target_audience_metrics` | `https://developers.google.com/google-ads/api/reference/rpc/v26/OnTargetAudienceMetrics` Reference on target audiences for this curve. |
| ## `reach_curve` | `https://developers.google.com/google-ads/api/reference/rpc/v26/ReachCurve` The generated reach curve for the planned product mix. |