registerBag(

string getContent() Gets the current response content.

array getAttributes() Returns all attributes.

int getInt(string $key, int $default) Returns the parameter value converted to integer.

array peekAll() Gets all flash messages.

string getName() Gets this bag's name.

bool isSessionHandlerInterface() Is this proxy handler and instance of \SessionHandlerInterface

bool hasPreviousSession() Whether the request contains a Session which was started in one of

static enableHttpMethodParameterOverride() Enables support for the _method request

BinaryFileResponse setFile(