code: public <T> void bindConfigGlobalDefaults(Class<T> configClass, ConfigDefaults<T> configDefaults)
      {
          Key<T> key = Key.get(configClass, GlobalDefaults.class);
          binder.bindConfigDefaults(new ConfigDefaultsHolder<>(key, configDefaults));
      }
docs: Binds default values for all the instances of given config class for the current binder