title: How can I get the client id from a request with a Client Credentials Grant Token
body: <p>I'm using Client Credentials Grant Token
  (<a href="https://laravel.com/docs/5.5/passport#client-credentials-grant-tokens" rel="nofollow noreferrer">https://laravel.com/docs/5.5/passport#client-credentials-grant-tokens</a>)
  and I'm looking to get the client id from a request where a Bearer Authorization header is set.
  Is there a simple way to get this id? </p>