bool handlerNeedsRequest() Determine if the session handler needs a request

void setRequestOnHandler(Request $request) Set the request on the handler

isStarted() {@inheritdoc}

registerBag(SessionBagInterface $bag) {@inheritdoc}

bool isDeferred() Determine if the provider is deferred.

void reflash() Reflash all of the session flash data.

bool isValidId(string $id) Determine if this is a valid session ID.

bool hasArgument(string|int $name) Determine if the given argument is present

void now(string $key, mixed $value) Flash a key / value pair to the session

SessionHandlerInterface getHandler()