Indexing poco object

Hi Team,

We are indexing the POCO object on our site. We need a language-based find the index.so we inherited the EPiServer.Core.ILocalizable class in our index class.

 public partial class SearchResultItem : EPiServer.Core.ILocalizable
    {
}

After indexing, we didn't see any language-based index in find backend UI. Refer image in below link

https://ibb.co/C2wpQ7C