如何通过父条目ID调用Gravity Forms嵌套表单结果并同步至AirTable

我用Gravity Forms搭建了活动注册的父表单，以及用于填写桌位人员信息的嵌套表单。目前需要将父表单信息和嵌套表单的人员数据推送至AirTable，推送前需对数据进行处理，但前提是能调用到嵌套数据。

父表单提交时我已捕获到它的唯一ID，导出子表单数据视图时，每行都附加了父条目ID，但通过get_entries调用并使用print_r输出原始数据时，却找不到这个父条目ID变量。翻遍文档都没找到解决方法，特此询问：如何通过父条目ID调用对应的嵌套表单结果？

以下是嵌套表单提交的原始数据：

Array ( 
    [id] => 2099 
    [form_id] => 5 
    [post_id] => 
    [date_created] => 2022-11-08 16:56:22 
    [date_updated] => 2022-11-08 16:56:22 
    [is_starred] => 0 
    [is_read] => 0 
    [ip] => 66.248.200.2 
    [source_url] => https://ecologik.net/ccs-test-form/ 
    [user_agent] => Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:106.0) Gecko/20100101 Firefox/106.0 
    [currency] => USD 
    [payment_status] => 
    [payment_date] => 
    [payment_amount] => 
    [payment_method] => 
    [transaction_id] => 
    [is_fulfilled] => 
    [created_by] => 1 
    [transaction_type] => 
    [status] => active 
    [1.3] => 1 
    [1.6] => 1 
    [3] => 222222 
    [5] => 2022-11-11 
    [4.1] => sadfsda 
    [4.3] => sdaf 
    [4.4] => Indiana 
    [4.5] => 45678 
    [4.6] => United States 
    [2] => https://image.jpeg 
    [is_approved] => 3 
    [1.2] => 
    [1.4] => 
    [1.8] => 
    [4.2] => 
    [6] => 
    [workflow_current_status_timestamp] => 
)

导出数据视图中显示父条目ID的截图：

内容的提问来源于stack exchange，提问作者jeynon