curl --request POST \  --url https://api.promptlayer.com/prompts/{prompt_id}/label \  --header 'Content-Type: application/json' \  --header 'X-API-KEY: <x-api-key>' \  --data '{  "prompt_version_number": 123,  "name": "<string>" }'

{  "created_at": "2023-11-07T05:31:56Z",  "id": 123,  "name": "<string>",  "prompt_id": 123,  "prompt_version_id": 123 }