Get the different keys for 1 defined segment
            :param segment: Segment to find. Ex : PV1, PID

def getSegmentKeys(self, segment):
        """
            Get the different keys for 1 defined segment
            :param segment: Segment to find. Ex : PV1, PID
        """
        return list(filter(lambda x: x.startswith(segment), self.getAliasedKeys()))