TF_Operation* TF_GraphNextOperation(TF_Graph* graph, size_t* pos) {
  if (*pos == 0) {
    // Advance past the first sentinel nodes in every graph (the source & sink).
    *pos += 2;
  } else {
    // Advance to the next node.
    *pos += 1;
  }

  mutex_lock l(graph->mu);
  while (*pos < static_cast<size_t>(graph->graph.num_node_ids())) {
    Node* node = graph->graph.FindNodeId(*pos);

See the License for the specific language governing permissions and
limitations under the License.
==============================================================================*/

#include "tensorflow/c/experimental/next_pluggable_device/c_api.h"

#include <cstdint>
#include <cstdlib>
#include <memory>
#include <string>
#include <string_view>
#include <utility>
#include <vector>

#include "absl/status/status.h"