curl --request POST \
  --url https://v1.api.flux-os.com/contracts/{id}/pricing-provisions/{pricing_provision_id}/condition-groups \
  --header 'Content-Type: application/json' \
  --header 'x-api-key: <api-key>' \
  --header 'x-user-id: <api-key>' \
  --data '
{
  "logical_operator": "<unknown>",
  "parent_group": "<unknown>"
}
'

{
  "data": {
    "id": "<string>",
    "provision": {
      "type": "<unknown>",
      "contract": "<unknown>",
      "fee": "<unknown>",
      "id": "<string>",
      "description": null,
      "created_at": "2023-11-07T05:31:56Z",
      "updated_at": "2023-11-07T05:31:56Z"
    },
    "parent_group": "<unknown>",
    "logical_operator": {
      "name": "<string>",
      "symbol": "<string>",
      "id": "<string>"
    },
    "created_at": "2023-11-07T05:31:56Z",
    "updated_at": "2023-11-07T05:31:56Z",
    "conditions": [
      {
        "value": 123,
        "id": "<string>",
        "measurement_property": {
          "name": "<string>",
          "short_code": "<string>",
          "id": "<string>"
        },
        "measurement_unit": {
          "name": "<string>",
          "abbreviation": "<string>",
          "id": "<string>",
          "html_symbol": null
        },
        "comparison_operator": {
          "name": "<string>",
          "symbol": "<string>",
          "id": "<string>"
        },
        "created_at": "2023-11-07T05:31:56Z",
        "updated_at": "2023-11-07T05:31:56Z"
      }
    ]
  }
}