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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 connection(self):
 """ get a cached connection from the pool """

        
        self._condition.acquire()
        try:
            if (self._maxconnections and self._connections >= self._maxconnections):
                raise TooManyConnections("%d connections are already equal to the max: %d" % (self._connections, self._maxconnections))
            # connection limit not reached, get a dedicated connection
            try: # first try to get it from the idle cache
                con = self._idle_cache.pop(0)
            except IndexError: # else get a fresh connection
                con = self.new_connection()
            self._connections += 1
        finally:
            self._condition.release()
        return con