Removes all instances from the registry.
Removes all instances from the registry. This should be done AFTER a top-level unpickle/pickle call.
Looks up an unpicklee by its object id.
Looks up an unpicklee by its object id. Throws an exception if oid is not valid.
Grabs the registeration id for the next object.
Grabs the registeration id for the next object.
Registers an object to an id, after its FIRST deserialization.
Registers an object to an id, after its FIRST deserialization.