code: public RunScheduledInstancesResult withInstanceIdSet(String... instanceIdSet) {
          if (this.instanceIdSet == null) {
              setInstanceIdSet(new com.amazonaws.internal.SdkInternalList<String>(instanceIdSet.length));
          }
          for (String ele : instanceIdSet) {
              this.instanceIdSet.add(ele);
          }
          return this;
      }
docs: <p>
  The IDs of the newly launched instances.
  </p>
  <p>
  <b>NOTE:</b> This method appends the values to the existing list (if any). Use
  {@link #setInstanceIdSet(java.util.Collection)} or {@link #withInstanceIdSet(java.util.Collection)} if you want
  to override the existing values.
  </p>
  
  @param instanceIdSet
  The IDs of the newly launched instances.
  @return Returns a reference to this object so that method calls can be chained together.