🧐[问题] 子组件怎么获取ProFormInstance 呢?

提问前先看看：

https://github.com/ryanhanwu/How-To-Ask-Questions-The-Smart-Way/blob/main/README-zh_CN.md

### 🧐 问题描述
我想在子组件里获取 ProFormInstance, 有类似 Proform.useProFormInstance的方法吗? 如果用ref.current的话, 传入子组件是不会更新的,只能将整个ref传进去

### 💻 示例代码

### 🚑 其他信息

The issue asks whether a child component can access a ProFormInstance through a hook and notes that passing ref.current does not update. No source files, tests, or entry points are identified; first locate the ProForm implementation and existing instance-access patterns, then clarify the supported behavior or document a reproducible change.

Written by the indexing model from the issue text.