Interface ServiceFactory<TService, TScope, TInstances>

interface ServiceFactory<
    TService = unknown,
    TScope extends "plugin" | "root" = "plugin" | "root",
    TInstances extends "singleton" | "multiton" = "singleton" | "multiton",
> {
    $$type: "@backstage/BackendFeature";
    service: ServiceRef<TService, TScope, TInstances>;
}