Method set_instance_reader_creator

src/tools/trainer_context.h:59–63

  void set_target_type(int target_type) noexcept { target_type_ = target_type; }

  void set_instance_reader_creator(
      const std::function<std::unique_ptr<EmbedInstanceReader>()>&
          instance_reader_creator) noexcept {
    instance_reader_creator_ = instance_reader_creator;
  }

  double file_loss() const noexcept { return file_loss_; }
  double file_loss_weight() const noexcept { return file_loss_weight_; }