R
apply(T1 t1, T2 t2, T3 t3, T4 t4)
default Function<T1, Function3<T2,T3,T4,R>>
curry()
default BiFunction<T1, T2, BiFunction<T3,T4,R>>
curry2()
default Function3<T1, T2, T3, Function<T4,R>>
curry3()