import os
from gcore import Gcore

client = Gcore(
    api_key=os.environ.get("GCORE_API_KEY"),  # This is the default and can be omitted
)
billing_reservations = client.cloud.billing_reservations.list()
print(billing_reservations.count)

{
  "count": 1,
  "results": [
    {
      "active_billing_plan_id": 123,
      "active_overcommit": {
        "active_from": "2023-11-07T05:31:56Z",
        "plan_item_id": 666,
        "price_per_month": "<string>",
        "price_per_unit": "<string>",
        "price_total": "<string>",
        "subscription_id": 12344
      },
      "commit": {
        "active_from": "2023-11-07T05:31:56Z",
        "active_to": "2023-11-07T05:31:56Z",
        "price_per_month": "<string>",
        "price_per_unit": "<string>",
        "price_total": "<string>",
        "subscription_id": 123
      },
      "hardware_info": {
        "cpu": "2xIntel Xeon 8468",
        "disk": "8 x 3.84 TB NVMe",
        "ram": "2TB RAM"
      },
      "region_name": "<string>",
      "resource_count": 123,
      "resource_name": "<string>",
      "unit_name": "<string>",
      "unit_size_month": "<string>",
      "unit_size_total": "<string>"
    }
  ]
}