code: public void setOccurrenceDaySet(java.util.Collection<Integer> occurrenceDaySet) {
          if (occurrenceDaySet == null) {
              this.occurrenceDaySet = null;
              return;
          }
  
          this.occurrenceDaySet = new com.amazonaws.internal.SdkInternalList<Integer>(occurrenceDaySet);
      }
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>
  
  @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).