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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 acquire(self):
        '''
        Get a new connection from the pool.
        This will return an existing connection, if one is available in the
        pool, or create a new connection.

        .. warning:: If the pool was created with `maxsize` and `block=True`,
            this method may block until a connection is available in the pool.
        '''

        self._condition.acquire()
        try:
            # Wait for a connection if there is an upper bound to the pool.
            if self._maxsize is not None and self._block:
                while not self._pool and self._nconnections == self._maxsize:
                    self._condition.wait(timeout=None) # block indefinitely

            # Check the pool for a non-stale connection.
            while self._pool:
                pooledconn = self._pool.pop(0) # get least recently used connection
                if self._idlettl is not None and (pooledconn.released + self._idlettl) < time.time():
                    pooledconn.connection.close()
                    self._nconnections -= 1
                else:
                    return pooledconn.connection

            connection = self._dbapi2.connect(*(), **self._connection_args.copy())
            self._nconnections += 1

            return connection
        finally:
            self._condition.release()