Information about data structures

[flip111]

As an example of another module Data.HashMap it says

Note that this is an unordered collection.

https://pursuit.purescript.org/packages/purescript-unordered-collections/1.0.1/docs/Data.HashMap

Such information would also be useful for the data structures in this package

---

About Data.Set i would guess that it has a uniqueness property because

All the elements in a set are unique.

http://learnyouahaskell.com/modules and because of the similarities between haskell and purescript

But the documentation of purescript's Data.Set doesn't specify this.

Can some information be added to the data structures in the package what they are for and which properties they offer?