code: public static <T1, T2, T3, T4> Quad<T1, T2, T3, T4> next(final T1 t1, final T2 t2, final T3 t3, final T4 t4) {
      return new Quad<>(t1, t2, t3, t4);
    }
docs: <p>next.</p>
  
  @param t1 a T1 object.
  @param t2 a T2 object.
  @param t3 a T3 object.
  @param t4 a T4 object.
  @param <T1> a T1 object.
  @param <T2> a T2 object.
  @param <T3> a T3 object.
  @param <T4> a T4 object.
  @return a {@link org.rapidpm.frp.model.Quad} object.