code: public java.util.List<String> getInstanceNames() {
          if (instanceNames == null) {
              instanceNames = new com.amazonaws.internal.SdkInternalList<String>();
          }
          return instanceNames;
      }
docs: <p>
  The names of the on-premises instances about which to get information.
  </p>
  
  @return The names of the on-premises instances about which to get information.