curl --location --request POST 'https://api.openai.com/v1/files' \
--form 'file=@""' \
--form 'purpose="微調整"'
{
"id": "file-XjGxS3KTG0uNmNOK362iJua3",
"object": "file",
"bytes": 140,
"created_at": 1613779121,
"filename": "mydata.jsonl",
"purpose": "fine-tune"
}