https://googleads.github.io/googleads-dotnet-lib/interface_google_1_1_api_1_1_ads_1_1_ad_manager_1_1v202508_1_1_i_placement_service.html
Ads API .NET library: Google.Api.Ads.AdManager.v202508.IPlacementService Interface Reference
ads apilibrarygoogleadmanagerinterface