docs: update deviceCodeGrantRequest

Author: panva

docs/functions/deviceCodeGrantRequest.md

@@ -18,7 +18,7 @@ Performs a Device Authorization Grant request at the
 | `as` | [`AuthorizationServer`](../interfaces/AuthorizationServer.md) | Authorization Server Metadata. |
 | `client` | [`Client`](../interfaces/Client.md) | Client Metadata. |
 | `clientAuthentication` | [`ClientAuth`](../type-aliases/ClientAuth.md) | Client Authentication Method. |
-| `deviceCode` | `string` | Device Code. |
+| `deviceCode` | `string` | Device Code. This is the [`device_code`](../interfaces/DeviceAuthorizationResponse.md#device_code) retrieved from [processDeviceAuthorizationResponse](processDeviceAuthorizationResponse.md). |
 | `options`? | [`TokenEndpointRequestOptions`](../interfaces/TokenEndpointRequestOptions.md) | - |
 
 ## Returns

src/index.ts

@@ -5556,7 +5556,9 @@ export async function processDeviceAuthorizationResponse(
  * @param as Authorization Server Metadata.
  * @param client Client Metadata.
  * @param clientAuthentication Client Authentication Method.
- * @param deviceCode Device Code.
+ * @param deviceCode Device Code. This is the
+ *   {@link DeviceAuthorizationResponse.device_code `device_code`} retrieved from
+ *   {@link processDeviceAuthorizationResponse}.
  *
  * @group Device Authorization Grant
  *