curl --request POST \
  --url 'https://api.nsr.stateset.com/api/v1/nsr/programs/evaluate' \
  --header 'X-API-Key: YOUR_API_KEY' \
  --header 'Content-Type: application/json' \
  --data '{
  "args": [
    {
      "type": "null"
    }
  ],
  "children": [
    {
      "type": "null"
    }
  ],
  "program": {
    "index": 1,
    "type": "var"
  }
}'

{
  "depth": 1,
  "execution_time_ms": 1,
  "output": {
    "type": "null"
  }
}