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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 conns(self, value: Set[str]) -> None: """ Updates the connection count of this node if not already done. """

        if not self._conns == value:
            old = self._conns
            self._conns = value
            ins = value - old
            outs = old - value
            logger.display("{}'s connections changed from {} to {}".format(self, old, value))
            self._connsChanged(ins, outs)