Current tests fail in haxe 4.2.5

[CodestarGames]

I'm trying to get HXX set up but nothing seems to work. I tried running the tests in the repo and get the following messages.

PS C:\devel\ceramic-samples\pixel-platformer> haxe tests.hxml tests/Dummy.hx:81: characters 24-42 : Type not found : tink.hxx.Generator tests/RunTests.hx:16: characters 5-62 : ... Called from macro here tests/RunTests.hx:16: characters 5-12 : ... Called from macro here tests/RunTests.hx:16: characters 5-12 : Void should be tink.testrunner.Assertion tests/RunTests.hx:16: characters 5-12 : ... For function argument 'assertion' tests/Dummy.hx:81: characters 24-42 : Type not found : tink.hxx.Generator tests/Dummy.hx:15: lines 15-76 : ... Defined in this class tests/Dummy.hx:63: characters 9-13 : Unknown identifier : tink Variables of type Void are not allowed