if (!status->status.ok()) return false;
  }
  return true;
}

// Create an empty tensor of type 'dtype'. 'shape' can be arbitrary, but has to
// result in a zero-sized tensor.
static TF_Tensor* EmptyTensor(TF_DataType dtype,
                              const tensorflow::TensorShape& shape) {
  static char empty;
  int64_t nelems = 1;
  std::vector<int64_t> dims;

    abstract Iterator<Entry<K, V>> entryIterator();

    Spliterator<Entry<K, V>> entrySpliterator() {
      return Spliterators.spliterator(
          entryIterator(), size(), Spliterator.SIZED | Spliterator.DISTINCT);
    }

    @Override
    public Set<Entry<K, V>> entrySet() {
      return new EntrySet<K, V>() {
        @Override
        Map<K, V> map() {