List available locations for instant VMs

{
  "results": [
    {
      "available_presets": [
        {
          "resources": {
            "gpus": {
              "h100-sxm5-80gb": {
                "count": 1
              }
            },
            "vcpu_count": 4,
            "ram_gb": 16,
            "storage_gb": 40
          }
        }
      ]
    }
  ],
  "total_result_count": 1
}