https://docs.cloud.google.com/dotnet/docs/reference/Google.Cloud.Retail.V2/latest/Google.Cloud.Retail.V2.SearchResponse.Types.Facet.Types.FacetValue.FacetValueOneofCase
Retail v2 API - Enum SearchResponse.Types.Facet.Types.FacetValue.FacetValueOneofCase (2.16.0) |...