def receive_request(self, transaction):
        if transaction.request.observe == 0:
            # Observe request
            host, port = transaction.request.source
            key_token = hash(str(host) + str(port) + str(transaction.request.token))
            non_counter = 0
            if key_token in self._relations:
                # Renew registration
                allowed = True
            else:
                allowed = False
            self._relations[key_token] = ObserveItem(time.time(), non_counter, allowed, transaction)

        return transaction
Returns `True` if the ability to redefine classes is needed by this agent.
dataset/ETHPy150Open Tanganelli/CoAPthon/coapthon/layers/observelayer.py/ObserveLayer.receive_request--crossover with--dataset/ETHPy150Open pantsbuild/pants/src/python/pants/backend/jvm/targets/java_agent.py/JavaAgent.can_redefine