curl --request POST \
  --url https://api.hyperline.co/v1/aggregators \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "entity": "api_calls",
  "operation": "count",
  "type": "metered",
  "where": {
    "fields": [
      {
        "property": "<string>"
      }
    ]
  },
  "formula_sql": "<string>",
  "name": "<string>",
  "description": "<string>",
  "allow_negative_values": false,
  "aggregate_on_customers_enabled": false,
  "custom_event_name": "<string>",
  "exposed_event_keys": [
    "<string>"
  ],
  "unit_name": "user",
  "default_interval_count": 123,
  "thresholds": [
    {
      "threshold_value": 123,
      "name": "<string>",
      "comparison_operator": "gte"
    }
  ]
}
'

{
  "id": "<string>",
  "entity": "<string>",
  "property": "<string>",
  "where": {
    "fields": [
      {
        "property": "<string>"
      }
    ]
  },
  "name": "<string>",
  "description": "<string>",
  "allow_negative_values": true,
  "aggregate_on_customers_enabled": true,
  "default_interval_count": 123,
  "custom_event_name": "<string>",
  "exposed_event_keys": [
    "<string>"
  ],
  "unit_name": "<string>",
  "thresholds": [
    {
      "id": "<string>",
      "name": "<string>",
      "threshold_value": 123
    }
  ],
  "created_at": "2023-12-25",
  "updated_at": "2023-12-25",
  "formula_sql": "<string>"
}