Currently we have :

EachKey
ArrayEach
ObjectEach

ArrayEach and ObjectEach almost do same function, and have same parameters, but the function declarations/def are bit different

Suggest overriding EachKey with KeyEach (or override to EachObject and EachArray whatever sounds more logial) and make the function declaration/parameters as close as possible

Would be greate to have this marked as to-do, so whenever I have time i'll get back to it