curl --request POST \
  --url https://api.merchantops.ai/api/property-definitions/batch-delete \
  --header 'Content-Type: application/json' \
  --data '
{
  "keys": [
    "<string>"
  ]
}
'

{
  "deleted": 123,
  "results": [
    {}
  ],
  "total": 123
}