Transliterator is missing compiled data constructors

[kornelski]

The icu_transliterate crate has constructor methods that take:

P: DataProvider<TransliteratorRulesV1Marker> + DataProvider<CanonicalDecompositionDataV1Marker> + DataProvider<CompatibilityDecompositionSupplementV1Marker> + DataProvider<CanonicalDecompositionTablesV1Marker> + DataProvider<CompatibilityDecompositionTablesV1Marker> + DataProvider<CanonicalCompositionsV1Marker> + ?Sized,

This is a large complex-looking trait bound, which does not help me figure out what the actual type is needed here. Even when I try to browse the mentioned types like TransliteratorRulesV1Marker, it leads to more levels of abstraction, which all end at some HelloWorldProvider.

As a result, this API is so opaque and overly abstract, that I can't even tell if the transliterator is working at all, or is it a defunct stub that has no real implementations.

Some methods have shockingly large trait bounds. To me this is very discouraging, because I'm afraid that if I run into even slightest problems with this crate, I'll be faced with such wall of abstractions upon abstractions, requiring me to understand an abstraction with over 60 degrees of freedom, which seems absolutely an overkill when there's probably between 0 to 2 actual implementations of it.