Example of usage of get , get(true)

[Albert-White-Coder]

Hello!
I am new to this fantastic state manager. I think the Doc has lack of good examples. I still did not understand what is the difference between get() or get(true) for an observer object. Anyone has an example that I can run to understand what it means?
I saw some short description at https://legendapp.com/open-source/state/tracing/ about them

Which basically tells :
You may want to call get() at a higher level in an object to only listen to it, and not every single child. Use a shallow listener with get(true) to only update when keys are added to or removed from the object. You may want to call peek() to not listen at all.

But I am looking for an example to understand it.

Many thanks for constructive inputs!