SelectorListResolver that finds the most specialized condition in the given list and
concatenates the results.
Factory to create
Selector using raw (non-coerced) data.
A factory to create
SelectorList from raw (non-coerced) data.
Fake implementation which throws unconditionally
Selector list resolver which throws unconditionally
SelectorListResolver which handles selectors differently by concatenating all list
values of the dictionary and maintains default behavior for values of different types.