code: public org.tensorflow.framework.MetaGraphDef.MetaInfoDef getMetaInfoDef() {
      return metaInfoDef_ == null ? org.tensorflow.framework.MetaGraphDef.MetaInfoDef.getDefaultInstance() : metaInfoDef_;
    }
docs: <code>optional .tensorflow.MetaGraphDef.MetaInfoDef meta_info_def = 1;</code>