Register a Gateway in TTN via API

Hello Everyone,

I want to register my Gateway via API in TTN. I read the Gateway API documentation (Gateway APIs | The Things Stack for LoRaWAN) and I know how to make the post request to create a gateway. But the document does not explain, how to convey the Gateway credentials, for example, Gateway EUI.
Below is an example Post field to create a sensor via API

                    'end_device' => [
                               'ids' => [
                                   'device_id' => test-device,
                                    'dev_eui' => Sensor Eui,
                                    'join_eui' => Sensor App Eui
                        'join_server_address' => '',
                        'network_server_address' => '',
                        'application_server_address' => '',
                        'name' => test-device
                     'field_mask' => [
                             'paths' => [

Does anyone know about the Post field to send with the post request to create a Gateway via API?
Any leads would be highly appreciated. Thank you so much.

Kind regards,
Imran Khan

Hata Kimliği: error:pkg/auth/rights:no_gateway_rightsKorelasyon Kimliği: f6f434d8ecf241f3a4d430139b68b61d
“code”: 7,
“message”: “error:pkg/auth/rights:no_gateway_rights (no rights for gateway register@ttn)”,
“details”: [
@type”: “”,
“namespace”: “pkg/auth/rights”,
“name”: “no_gateway_rights”,
“message_format”: "no rights for gateway {uid}",
“attributes”: {
“uid”: “register@ttn”
“correlation_id”: “1ddd82d313dd40fda2dcaf5ea4586443”,
“code”: 7