How to use the azure-servicebus.azure.servicebus._common_serialization._ETreeXmlToObject function in azure-servicebus

('DuplicateDetectionHistoryTimeWindow', 'duplicate_detection_history_time_window', None),
            ('EnableBatchedOperations', 'enable_batched_operations', _parse_bool),
            ('MaxDeliveryCount', 'max_delivery_count', int),
            ('MessageCount', 'message_count', int),
            ('SizeInBytes', 'size_in_bytes', int),
        ]

        for map in mappings:
            if _read_etree_element(queue_element, map[0], queue, map[1], map[2]):
                invalid_queue = False

    if invalid_queue:
        raise WindowsAzureError(_ERROR_QUEUE_NOT_FOUND)

    # extract id, updated and name value from feed entry and set them of queue.
    for name, value in _ETreeXmlToObject.get_entry_properties_from_element(
        entry_element, True).items():
        setattr(queue, name, value)

    return queue

_make_etree_ns_attr_name(_etree_sb_feed_namespaces['i'], 'type'), None)
            sql_exp_element = filter_element.find('./sb:SqlExpression', _etree_sb_feed_namespaces)
            if sql_exp_element is not None:
                rule.filter_expression = sql_exp_element.text

        action_element = rule_element.find('./sb:Action', _etree_sb_feed_namespaces)
        if action_element is not None:
            rule.action_type = action_element.attrib.get(
                _make_etree_ns_attr_name(_etree_sb_feed_namespaces['i'], 'type'), None)
            sql_exp_element = action_element.find('./sb:SqlExpression', _etree_sb_feed_namespaces)
            if sql_exp_element is not None:
                rule.action_expression = sql_exp_element.text


    # extract id, updated and name value from feed entry and set them of rule.
    for name, value in _ETreeXmlToObject.get_entry_properties_from_element(
        entry_element, True, '/rules').items():
        setattr(rule, name, value)

    return rule