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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:
 async def refresh_pool_ledger(handle: int) -> None: """ Refreshes a local copy of a pool ledger and updates pool nodes connections. :param handle: pool handle returned by indy_open_pool_ledger :return: Error code """


    logger = logging.getLogger(__name__)
    logger.debug("refresh_pool_ledger: >>> config_name: %r",
                 handle)

    if not hasattr(refresh_pool_ledger, "cb"):
        logger.debug("refresh_pool_ledger: Creating callback")
        refresh_pool_ledger.cb = create_cb(CFUNCTYPE(None, c_int32, c_int32))

    c_handle = c_int32(handle)

    res = await do_call('indy_refresh_pool_ledger',
                        c_handle,
                        refresh_pool_ledger.cb)

    logger.debug("refresh_pool_ledger: <<< res: %r", res)
    return res