The full :attr:`route` for this :class:`.Router`.

        It includes the :attr:`parent` portion of the route if a parent
        router is available.

def full_route(self):
        '''The full :attr:`route` for this :class:`.Router`.

        It includes the :attr:`parent` portion of the route if a parent
        router is available.
        '''
        if self._parent:
            return self._parent.full_route + self._route
        else:
            return self._route