Sorry I'm not entirely sure what your looking for are you just wanting to add `{ }`? Like

    if (string.IsNullOrEmpty(GetConfiguration<string>(Constants.Configuration.RavenConnectionStringKey)))
    {
        ravenStore = new EmbeddableDocumentStore
        {
            DataDirectory = GetConfiguration<string>(Constants.Configuration.RavenDataDirectoryKey)
        };
    }
    ....