@API(status = API.Status.STABLE)
            static <C> @NonNull Simple<C> contextFree(final @NonNull BiPredicate<String, String> test) {
                return (ctx, suggestion, input) -> test.test(suggestion, input);
            }
Create a new context-free {@link Simple}.

@param test predicate
@param <C>  sender type
@return simple filter
cloud-core/src/main/java/org/incendo/cloud/suggestion/FilteringSuggestionProcessor.java