code: public EventSubscription withSourceIdsList(String... sourceIdsList) {
          if (this.sourceIdsList == null) {
              setSourceIdsList(new java.util.ArrayList<String>(sourceIdsList.length));
          }
          for (String ele : sourceIdsList) {
              this.sourceIdsList.add(ele);
          }
          return this;
      }
docs: <p>
  A list of source IDs for the event notification subscription.
  </p>
  <p>
  <b>NOTE:</b> This method appends the values to the existing list (if any). Use
  {@link #setSourceIdsList(java.util.Collection)} or {@link #withSourceIdsList(java.util.Collection)} if you want
  to override the existing values.
  </p>
  
  @param sourceIdsList
  A list of source IDs for the event notification subscription.
  @return Returns a reference to this object so that method calls can be chained together.