Get user in LoginProxy

Hi, I'm interested on get the user to return to angular2 in LoginProxy@proxy, but I did not find which class or object returns this.

I need something like this:

```
[...]
public function proxy($grantType, array $data = [])
{
$data = array_merge($data, [
'client_id' => env('PASSWORD_CLIENT_ID'),
'client_secret' => env('PASSWORD_CLIENT_SECRET'),
'grant_type' => $grantType
]);

$response = $this->apiConsumer->post('/oauth/token', $data);
// dd($response, $data, self::REFRESH_TOKEN);
if (!$response->isSuccessful()) {
throw new InvalidCredentialsException();
}

$data = json_decode($response->getContent());

// Create a refresh token cookie
$this->cookie->queue(
self::REFRESH_TOKEN,
$data->refresh_token,
864000, // 10 days
null,
null,
false,
true // HttpOnly
);


return [
'user' => /* User with this token or refresh token */,
'access_token' => $data->access_token,
'expires_in' => $data->expires_in
];
}

[...]
```

I thought something like `$this->auth->user()` but it seems it's not defined.

What am I doing wrong?

Thanks!