curl --request DELETE \
  --url https://api.gleap.io/v3/aicontent/oldbatches \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --header 'project: <project>' \
  --data '
{
  "currentBatchId": "<string>",
  "type": "<string>"
}
'

{
  "deleted": "<unknown>",
  "success": true
}