curl --request PATCH \
  --url https://api.opper.ai/v3/spans/{id} \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "end_time": "2023-11-07T05:31:56Z",
  "error": "<string>",
  "meta": {},
  "metadata": {},
  "output": "<string>",
  "tags": {}
}
'

{
  "error": {
    "code": "<string>",
    "message": "<string>",
    "details": "<unknown>"
  },
  "meta": {}
}