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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def add_serviceListener(self, type, listener):
 """Adds a listener for a particular service type. This object will then have its update_record method called when information arrives for that type."""

        self.remove_service_listener(listener)
        self.browsers.append(ServiceBrowser(self, type, listener))