docs: public void installBindings(BindingsGroup toInstall) {
      if (linkedBindings != null) {
        throw new IllegalStateException("Cannot install further bindings after calling linkAll().");
      }
      for (Map.Entry<String, ? extends Binding<?>> entry : toInstall.entrySet()) {
        bindings.put(entry.getKey(), scope(entry.getValue()));
      }
    }