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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 cache(self, con):
 """Put a connection back into the pool cache."""

        try:
            if self._reset == 2:
                con.reset()  # reset the connection completely
            else:
                if self._reset or con._transaction:
                    try:
                        con.rollback()  # rollback a possible transaction
                    except Exception:
                        pass
            self._cache.put(con, 0)  # and then put it back into the cache
        except Full:
            con.close()
        if self._connections:
            self._connections.release()