curl --request POST \
  --url https://api.trymaitai.ai/api/v1/workflow-test-sets \
  --header 'Content-Type: application/json' \
  --header 'X-Maitai-Api-Key: <api-key>' \
  --data '
{
  "workflow_id": 42,
  "test_set_name": "HS Classification Holdout",
  "workflow_run_ids": [
    1001,
    1002
  ],
  "session_ids": [
    "session_abc123"
  ]
}
'

{
  "data": "<unknown>"
}