Add custom claim to Laravel Passport access token - laravel

Question

I'm manually creating my Passport access tokens, see below.
How can I add custom claims to the created token?
In the past, where I didn't need a refresh token, I used this: https://github.com/corbosman/laravel-passport-claims
<?php
namespace App\Http\Controllers;
use App\Models\User;
use Exception;
use Illuminate\Database\Eloquent\ModelNotFoundException;
use League\OAuth2\Server\Exception\OAuthServerException;
use Psr\Http\Message\ServerRequestInterface;
use Response;
use \Laravel\Passport\Http\Controllers\AccessTokenController as ATC;
class AccessTokenController extends ATC
{
public function issueToken(ServerRequestInterface $request)
{
try {
//get username (default is :email)
$username = $request->getParsedBody()['username'];
//generate token
$tokenResponse = parent::issueToken($request);
//convert response to json string
$content = $tokenResponse->getContent();
//convert json to array
$data = json_decode($content, true);
if(isset($data["error"]))
throw new OAuthServerException('The user credentials were incorrect.', 6, 'invalid_credentials', 401);
//add access token to user
$token = array();
$token["access_token"] = $data['access_token'];
$token["expires_in"] = $data['expires_in'];
$token["refresh_token"] = $data['refresh_token'];
return Response::json($token);
}
catch (ModelNotFoundException $e) { // email notfound
//return error message
return response(["message" => "User not found"], 500);
}
catch (OAuthServerException $e) { //password not correct..token not granted
//return error message
return response(["message" => "The user credentials were incorrect.', 6, 'invalid_credentials"], 500);
}
catch (Exception $e) {
////return error message
return response(["message" => "Internal server error"], 500);
}
}
}