code: public java.util.List<InstanceState> getInstanceStates() {
          if (instanceStates == null) {
              instanceStates = new com.amazonaws.internal.SdkInternalList<InstanceState>();
          }
          return instanceStates;
      }
docs: <p>
  Information about the health of the instances.
  </p>
  
  @return Information about the health of the instances.