Specialized lenses

[bvkatwijk]

We could generate specialized lenses for wrapper types, e.g. support a modifyEach on a Map.
Collections can have things like

CollectionLens<T>.find(Predicate<T> filter): OptionLens<T>

Design questions

• Will this require a lot of generic gymnastics or boilerplate generation?
• Are there alternative designs? e.g. adding something working on Iterable?
• What types should be supported?
• Can it be extended with a module e.g. vavr module for vavr collection lenses?