public com.alipay.sofa.jraft.entity.LocalFileMetaOutter.LocalFileMetaOrBuilder getMetaOrBuilder() {
                    if (metaBuilder_ != null) {
                        return metaBuilder_.getMessageOrBuilder();
                    } else {
                        return meta_ == null ? com.alipay.sofa.jraft.entity.LocalFileMetaOutter.LocalFileMeta
                            .getDefaultInstance() : meta_;
                    }
                }
<code>optional .jraft.LocalFileMeta meta = 2;</code>
jraft-core/src/main/java/com/alipay/sofa/jraft/entity/LocalStorageOutter.java