public java.util.List<? extends com.google.protobuf.DescriptorProtos.DescriptorProtoOrBuilder> 
           getMessageTypeOrBuilderList() {
        if (messageTypeBuilder_ != null) {
          return messageTypeBuilder_.getMessageOrBuilderList();
        } else {
          return java.util.Collections.unmodifiableList(messageType_);
        }
      }