curl --request POST \
  --url https://api.example.com/v2/{entity}/{project}/evaluations \
  --header 'Authorization: Basic <encoded-value>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "dataset": "<string>",
  "name": "<string>",
  "description": "<string>",
  "eval_attributes": {},
  "evaluation_name": "<string>",
  "scorers": [
    "<string>"
  ],
  "trials": 1
}
'

{
  "digest": "<string>",
  "evaluation_ref": "<string>",
  "object_id": "<string>",
  "version_index": 123
}