code: public void setInstanceIdSet(java.util.Collection<String> instanceIdSet) {
          if (instanceIdSet == null) {
              this.instanceIdSet = null;
              return;
          }
  
          this.instanceIdSet = new com.amazonaws.internal.SdkInternalList<String>(instanceIdSet);
      }
docs: <p>
  The IDs of the newly launched instances.
  </p>
  
  @param instanceIdSet
  The IDs of the newly launched instances.