void Traverse ( [FRigBaseElement](API\Plugins\ControlRig\Rigs\FRigBaseElement) * InElement, bool bTowardsChildren, [TFunction](API\Runtime\Core\GenericPlatform\TFunction)< void([FRigBaseElement](API\Plugins\ControlRig\Rigs\FRigBaseElement) *, bool &)> PerElementFunction ) const