add hyperparams (#793)

fine_tuning_job.go

@@ -27,6 +27,8 @@ type FineTuningJob struct {
 
 type Hyperparameters struct {
 	Epochs                 any `json:"n_epochs,omitempty"`
+	LearningRateMultiplier any `json:"learning_rate_multiplier,omitempty"`
+	BatchSize              any `json:"batch_size,omitempty"`
 }
 
 type FineTuningJobRequest struct {

fine_tuning_job_test.go

@@ -34,6 +34,8 @@ func TestFineTuningJob(t *testing.T) {
 				TrainingFile:   "file-abc123",
 				Hyperparameters: openai.Hyperparameters{
 					Epochs:                 "auto",
+					LearningRateMultiplier: "auto",
+					BatchSize:              "auto",
 				},
 				TrainedTokens: 5768,
 			})