code: public java.util.List<String> getInstancesToProtect() {
          if (instancesToProtect == null) {
              instancesToProtect = new com.amazonaws.internal.SdkInternalList<String>();
          }
          return instancesToProtect;
      }
docs: <p>
  Specific list of instances to be protected when shrinking an instance group.
  </p>
  
  @return Specific list of instances to be protected when shrinking an instance group.