curl --request POST \
  --url https://api.ai-stats.phaseo.app/v1/files \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: multipart/form-data' \
  --form file='@example-file' \
  --form 'purpose=<string>'

{
  "id": "<string>",
  "object": "<string>",
  "bytes": 123,
  "created_at": 123,
  "filename": "<string>",
  "purpose": "<string>",
  "status": "<string>",
  "status_details": {}
}