  void Compute(OpKernelContext* ctx) override {
    StagingMap<Ordered>* map = nullptr;
    OP_REQUIRES_OK(ctx, GetStagingMap(ctx, def(), &map));
    core::ScopedUnref scope(map);

    OP_REQUIRES_OK(ctx, map->clear());
  }
  void Compute(OpKernelContext* ctx) override {
    StagingMap<Ordered>* map = nullptr;
    OP_REQUIRES_OK(ctx, GetStagingMap(ctx, def(), &map));
    core::ScopedUnref scope(map);

    OP_REQUIRES_OK(ctx, map->clear());
  }