@type t() :: %ExOpenAI.Components.FineTuningJobCheckpoint{
  created_at: integer(),
  fine_tuned_model_checkpoint: String.t(),
  fine_tuning_job_id: String.t(),
  id: String.t(),
  metrics: %{
    full_valid_loss: float(),
    full_valid_mean_token_accuracy: float(),
    step: float(),
    train_loss: float(),
    train_mean_token_accuracy: float(),
    valid_loss: float(),
    valid_mean_token_accuracy: float()
  },
  object: :"fine_tuning.job.checkpoint",
  step_number: integer()
}