prefixName only part of InternalFormInstance for shouldUpdate callback

Hi,

in antd I'd need to use prefixName that is passed to the child form field, but it seems to be only for internal use. Is there an other way to get the prefix name without using this property or is is save to use?

prefixName?: InternalNamePath;

https://github.com/ant-design/ant-design/issues/30529

      <Form.Field shouldUpdate >
        {(form) => {
          // this is then undefined according to type definition but holds the item path to access the element!
          console.log(form.prefixName)

          // type should be from https://github.com/react-component/field-form/blob/e118381c2102b36c4ffe7e17a6415df091e772b7/src/interface.ts#L233
          
          return (
              <Form.Field name="fun" hidden={form.getFieldValue([...form.prefixName, 'other'])}>
                <Input />
              </Form.Field>
          )
        }}
      </Form.Field>

(here the real world use case: https://github.com/ohmyform/ui/blob/logic/components/form/admin/types/slider.type.tsx)

Start with src/interface.ts around the linked InternalFormInstance definition and compare it with the shouldUpdate callback usage shown in the issue. Review the linked Ant Design issue and real-world example to determine the intended public shape; done means prefixName usage in the callback is accurately represented by the field-form types.