def isCanceled(event):
    return not event.returnValue
Ensures that if a contact is signalled to be removed it is also cleared
dataset/ETHPy150Open anandology/pyjamas/library/gwt/dnd/utils.py/isCanceled--crossover with--dataset/ETHPy150Open ntoll/p4p2p/test/dht/test_routingtable.py/TestRoutingTable.test_remove_contact_removes_from_replacement_cache