public com.alibaba.otter.node.etl.model.protobuf.BatchProto.IdentityOrBuilder getIdentityOrBuilder() {
        if (identityBuilder_ != null) {
          return identityBuilder_.getMessageOrBuilder();
        } else {
          return identity_;
        }
      }
<code>optional .com.alibaba.otter.node.etl.model.protobuf.Identity identity = 1;</code>
node/etl/src/main/java/com/alibaba/otter/node/etl/model/protobuf/BatchProto.java