code: public ScheduledInstanceRecurrence withOccurrenceDaySet(Integer... occurrenceDaySet) {
          if (this.occurrenceDaySet == null) {
              setOccurrenceDaySet(new com.amazonaws.internal.SdkInternalList<Integer>(occurrenceDaySet.length));
          }
          for (Integer ele : occurrenceDaySet) {
              this.occurrenceDaySet.add(ele);
          }
          return this;
      }
docs: <p>
  The days. For a monthly schedule, this is one or more days of the month (1-31). For a weekly schedule, this is
  one or more days of the week (1-7, where 1 is Sunday).
  </p>
  <p>
  <b>NOTE:</b> This method appends the values to the existing list (if any). Use
  {@link #setOccurrenceDaySet(java.util.Collection)} or {@link #withOccurrenceDaySet(java.util.Collection)} if you
  want to override the existing values.
  </p>
  
  @param occurrenceDaySet
  The days. For a monthly schedule, this is one or more days of the month (1-31). For a weekly schedule,
  this is one or more days of the week (1-7, where 1 is Sunday).
  @return Returns a reference to this object so that method calls can be chained together.