curl --request PUT \
  --url https://api.{your-broker}.slate-labs.com/broker/groups/{group_id}/swap-config \
  --header 'Content-Type: application/json' \
  --data '
{
  "instruments": {}
}
'

{
  "group_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "instruments_updated": 123,
  "instruments_created": 123
}