I've forgot to tell you, <you can also use >`map`<...

# akkurate

[Johann Pardanaud]

I've forgot to tell you, you can also use `map` to transform your data before validating it:

map { it.map { it.id } }
    .hasNoDuplicates()

[Johann Pardanaud]

When looking at this code, I can perfectly see the use for a transform parameter on hasNoDuplicates, it would look like this:

hasNoDuplicates { it.id }