## Set Account Custom Nameserver Related Zone Metadata

`zones.custom_nameservers.update(CustomNameserverUpdateParams**kwargs)  -> SyncSinglePage[CustomNameserverUpdateResponse]`

**put** `/zones/{zone_id}/custom_ns`

Set metadata for account-level custom nameservers on a zone.

If you would like new zones in the account to use account custom nameservers by default, use PUT /accounts/:identifier to set the account setting use_account_custom_ns_by_default to true.

Deprecated in favor of [Update DNS Settings](https://developers.cloudflare.com/api/operations/dns-settings-for-a-zone-update-dns-settings).

### Parameters

- `zone_id: str`

  Identifier.

- `enabled: Optional[bool]`

  Whether zone uses account-level custom nameservers.

- `ns_set: Optional[float]`

  The number of the name server set to assign to the zone.

### Returns

- `str`

  Unused

### Example

```python
import os
from cloudflare import Cloudflare

client = Cloudflare(
    api_token=os.environ.get("CLOUDFLARE_API_TOKEN"),  # This is the default and can be omitted
)
page = client.zones.custom_nameservers.update(
    zone_id="023e105f4ecef8ad9ca31a8372d0c353",
)
page = page.result[0]
print(page)
```

#### Response

```json
{
  "errors": [
    {
      "code": 1000,
      "message": "message",
      "documentation_url": "documentation_url",
      "source": {
        "pointer": "pointer"
      }
    }
  ],
  "messages": [
    {
      "code": 1000,
      "message": "message",
      "documentation_url": "documentation_url",
      "source": {
        "pointer": "pointer"
      }
    }
  ],
  "success": true,
  "result": [],
  "result_info": {
    "count": 1,
    "page": 1,
    "per_page": 20,
    "total_count": 2000
  }
}
```