GraphImportConfig::InputArrays* inputs) {
  std::vector<std::string> used_node_dtypes;
  if (node_dtypes.empty()) {
    // Mark all the node dtypes Invalid, so the importer can handle them by
    // using the type from the graph.
    used_node_dtypes.resize(node_names.size(), DataType_Name(DT_INVALID));
  } else if (node_names.size() == node_dtypes.size()) {