FIX: finetuningjob deserialize crash

[inszee]

let job = open_ai_client
.fine_tuning()
.create(fine_tune_request)
.await?;
FineTuningJob struct is like:
{
"object": "fine_tuning.job",
"id": "ftjob xxx",
"model": "gpt-3.5-turbo-0613",
"created_at": 1700626516,
"finished_at": null,
"fine_tuned_model": null,
"organization_id": "org-zxxx",
"result_files": [],
"status": "validating_files",
"validation_file": null,
"training_file": "file-xxx",
"hyperparameters": {
"batch_size": "auto",
"learning_rate_multiplier": "auto"
},
"trained_tokens": null,
"error": null
}
have not n_epochs variable ,cause deserialize exception.

[64bit]

Hey thanks for PR, I'm not sure I follow what's going on.

My guess is that #[serde(skip_serializing_if = "Option::is_none")] is missing attribute on CreateFineTuningJobRequest struct's hyperparameters field.

[64bit]

Hmm there's perhaps confusion between deprecated and new fine tuning APIs.

[inszee]

Hey thanks for PR, I'm not sure I follow what's going on.

My guess is that #[serde(skip_serializing_if = "Option::is_none")] is missing attribute on CreateFineTuningJobRequest struct's hyperparameters field.

 There's not impact on the structure of CreateFineTuningJobRequest。#[serde(skip_serializing_if = "Option::is_none")] is used to declare that a field in the structure may not exist during deserialization