def on_message(self, headers, body):
        pass
Called when the Client is about to send a request.
dataset/ETHPy150Open jasonrbriggs/stomp.py/stomp/listener.py/ConnectionListener.on_message--crossover with--dataset/ETHPy150Open 0rpc/zerorpc-python/zerorpc/context.py/Context.hook_client_before_request