getGuardProviderKey()
class PostAuthenticationGuardToken extends
mixed getCredentials() This is meant to be only an authenticated token, where credentials have
interface GuardTokenInterface implements
class PreAuthenticationGuardToken extends
mixed getCredentials() Returns the user credentials, which might be an array of anything you
serialize() {@inheritdoc}
setAuthenticated($authenticated) Sets the authenticated flag.
string getProviderKey() Returns the provider (firewall) key.
unserialize($serialized) {@inheritdoc} Parameters