code: public ListOfferingsResult withOfferings(Offering... offerings) {
          if (this.offerings == null) {
              setOfferings(new java.util.ArrayList<Offering>(offerings.length));
          }
          for (Offering ele : offerings) {
              this.offerings.add(ele);
          }
          return this;
      }
docs: <p>
  A value representing the list offering results.
  </p>
  <p>
  <b>NOTE:</b> This method appends the values to the existing list (if any). Use
  {@link #setOfferings(java.util.Collection)} or {@link #withOfferings(java.util.Collection)} if you want to
  override the existing values.
  </p>
  
  @param offerings
  A value representing the list offering results.
  @return Returns a reference to this object so that method calls can be chained together.