code: public java.util.List<InstancePatchState> getInstancePatchStates() {
          if (instancePatchStates == null) {
              instancePatchStates = new com.amazonaws.internal.SdkInternalList<InstancePatchState>();
          }
          return instancePatchStates;
      }
docs: <p>
  The high-level patch state for the requested instances.
  </p>
  
  @return The high-level patch state for the requested instances.