public void Compose(IUmbracoBuilder builder)
        {
            builder.MapDefinitions().Add <MemberListItemMapDefinition>();

            builder.Components().Append <MemberIndexingComponent>();
            builder.AddNotificationHandler <ServerVariablesParsingNotification, ServerVariablesParsingHandler>();

            builder.Services.AddUnique <IMemberExtendedService, MemberExtendedService>();

            // Extend the Member Index fieldset.
            builder.Services.ConfigureOptions <ConfigureMemberIndexOptions>();
        }