curl --request POST \
  --url https://api.example.com/v2/{entity}/{project}/models \
  --header 'Authorization: Basic <encoded-value>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "name": "<string>",
  "source_code": "<string>",
  "description": "<string>",
  "attributes": {}
}
'

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