OVRGrabbable: allow being grabbed by only right (or left) hand?

Looking at the OVRGrabbable implementation it seems to me that there is no way to allow an OVRGrabbable to be grabbed only by one (or a set of) give OVRGrabber(s). Is this a feature included in OVR that I am completely missing? It seems pretty basic to me to not be included. I know everything should be hand-side agnostic but forcing the player to grab with one hand OR the other is certainly not a corner case.