curl --request GET \
  --url https://integrations.clopos.com/open-api/sale-types \
  --header 'x-brand: <api-key>' \
  --header 'x-token: <api-key>' \
  --header 'x-venue: <api-key>'

[
  {
    "id": 123,
    "name": "<string>",
    "system_type": "<string>",
    "channel": "<string>",
    "service_charge_rate": 123,
    "payment_method": {
      "id": 123,
      "name": "<string>",
      "customer_required": 123,
      "is_system": 123,
      "balance": {
        "id": 123,
        "amount": 123,
        "type": "<string>"
      }
    }
  }
]