Post Request to Google API with OAuth2.0

Question

I want to make a post request to Google Indexing API with OAuth2.0 authentication.

https://developers.google.com/search/apis/indexing-api/v3/quickstart

I want to do this with Guzzle package in Laravel 5.4

(new GuzzleHttp\Client)->post(URL, PARAMS);

In Google documents, they provide a PHP package to do this. But I want to achieve this by Guzzle and Laravel. Is there any way to send token parameters by them?

Thanks.