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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 _check_acl(self, acl_no, network, netmask):
 """Check a ACL config exists in the running config. :param acl_no: access control list (ACL) number :param network: network which this ACL permits :param netmask: netmask of the network :return: """

        exp_cfg_lines = ['ip access-list standard ' + str(acl_no),
                         ' permit ' + str(network) + ' ' + str(netmask)]
        ios_cfg = self._get_running_config()
        parse = HTParser(ios_cfg)
        acls_raw = parse.find_children(exp_cfg_lines[0])
        if acls_raw:
            if exp_cfg_lines[1] in acls_raw:
                return True
            LOG.error("Mismatch in ACL configuration for %s", acl_no)
            return False
        LOG.debug("%s is not present in config", acl_no)
        return False