<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def superseeded_by(self, other_service):
 """Return True if input service has login id and this has not."""

        if not other_service or \
                other_service.__class__ != self.__class__ or \
                other_service.protocol != self.protocol or \
                other_service.port != self.port:
            return False

        # If this service does not have a login id but the other one does, then
        # we should return True here
        return not self.device_credentials and other_service.device_credentials