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