Google Meet REST API Permission denied on resource Space (or it might not exist) error

I have just configured everything in google cloud console, i am using service account as auth method and i download key file as json. But i am getting this error

"Call failed with message: { "message": "Permission denied on resource Space (or it might not exist)", "code": 7, "status": "PERMISSION_DENIED", "details": [] }"

<?php

namespace App\Http\Controllers\Panel;

use App\Http\Controllers\Controller;
use Google\ApiCore\ApiException;
use Google\ApiCore\ValidationException;
use Google\Apps\Meet\V2\Client\SpacesServiceClient;
use Google\Apps\Meet\V2\CreateSpaceRequest;
use Google\Apps\Meet\V2\Space;

class YourControllerName extends Controller
{
    public function __construct()
    {

    }

    /**
     * @throws ValidationException
     */
    public function index()
    {
        $spacesServiceClient  = new SpacesServiceClient([
            'credentials' => storage_path('app\google-calendar\credentials.json')
        ]);

        $request = new CreateSpaceRequest();

        try {
            $response = $spacesServiceClient->createSpace($request);
            printf('Response data: %s' . PHP_EOL, $response->serializeToJsonString());
        } catch (ApiException $ex) {
            printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
        }
    

after setting up domain wide delegation and other related configurations on google cloud console this code worked for me

public function index(){
     $credentials = (new ServiceAccountCredentials(['https://www.googleapis.com/auth/meetings.space.readonly','https://www.googleapis.com/auth/meetings.space.created']
         ,base_path("key.json"),
         'test@test.com'
     ));
    // Create a client.
    $spacesServiceClient = new SpacesServiceClient(['credentials' => $credentials]);

    // Prepare the request message.
    $request = new CreateSpaceRequest();

    // Call the API and handle any network failures.
    try {
        /** @var Space $response */
        $response = $spacesServiceClient->createSpace($request);
        printf('Response data: %s' . PHP_EOL, $response->serializeToJsonString());
    } catch (ApiException $ex) {
        printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
    }
}