public static <T0, T1, T2, T3> Supplier<MutableTuple4<T0, T1, T2, T3>> constructor(
            Class<T0> e0,
            Class<T1> e1,
            Class<T2> e2,
            Class<T3> e3) {
        return MutableTuple4Impl::new;
    }
Creates and returns a new {@link MutableTuple4} constructor that creates
an object that is empty.

@param <T0> type of element 0
@param <T1> type of element 1
@param <T2> type of element 2
@param <T3> type of element 3
@param e0   element 0
@param e1   element 1
@param e2   element 2
@param e3   element 3
@return     a new {@link MutableTuple4} constructor that creates an
            object that is empty.

@see Tuple4
@see Tuple
common-parent/tuple/src/main/java/com/speedment/common/tuple/MutableTuples.java