
class PubSub:
    def __init__(self):
        pass
    
    def Subscribe(self, channel_name, callback):
        pass
    
    def Publish(self, channel_name, **kwargs):
        pass

    def UnSubscribe(self, channel_name):
        pass

    def CreateChannel(self, channel_name):
        pass

    def DeleteChannel(self, channel_name):
        pass

