public static S fold <SELF, FLOAT, T, S, PRED>(FloatType <SELF, FLOAT, T, PRED> value, S state, Func <S, T, S> folder)
where FLOAT : struct, Floating <T>
where PRED : struct, Pred <T>
where SELF : FloatType <SELF, FLOAT, T, PRED> =>
value.Fold(state, folder);
