How to create locators using parent, child, preceding, and following elements?

[AjithAutomationQA]

I’m migrating an existing Appium + Java automation framework to Mobilewright.
In Appium, we can locate elements relative to other elements using XPath, for example:

// following
//preceding
//parent
//child

How can we achieve the same in Mobilewright?
For example, how can I create locators for:

* Parent element
* Child element
* Following sibling/element
* Preceding sibling/element

Is there a recommended Mobilewright API or locator chaining approach for these relationships?
For example, something conceptually similar to:
screen.getByTestId('parent').getByTestId('child')
or:

screen.getByTestId('element').preceding(...)
screen.getByTestId('element').parent(...)

What is the recommended approach for handling these relationships in Mobilewright?