class AbstractGuardAuthenticator implements GuardAuthenticatorInterface 
 An optional base class that creates a PostAuthenticationGuardToken for you. 
Methods
 GuardTokenInterface   createAuthenticatedToken(UserInterface $user, string $providerKey) Shortcut to create a PostAuthenticationGuardToken for you, if you don't really care about which authenticated token you're using.  
Details
                        GuardTokenInterface
    createAuthenticatedToken(UserInterface $user, string $provi