Upload a file that can be used across various endpoints. The Batch API only supports `.jsonl` files up to 100 MB in size. The input also has a specific required [format](/docs/batch). Please contact us if you need to increase these storage limits.

The file identifier, which can be referenced in the API endpoints.

The size of the file, in bytes.

The Unix timestamp (in seconds) for when the file was created.

The name of the file.

The object type, which is always file.

The intended purpose of the file. Supported values are batch, and batch_output.