Property under which ExpressDeviceDetector stores detected device.
Notice that if you pass an express request object to ExpressRequestAdapter
which already has this property with according device, ExpressDeviceDetector won't compute this property again.
Property under which location of the request is stored.
Important! Clients of the ExpressRequestAdapter have to set this property accordingly
on express request object before passing it to adapter, as he won't compute it.
Express request instance managed by ExpressRequestAdapter.