public boolean hasIdentity() {
        return ((bitField0_ & 0x00000001) == 0x00000001);
      }
<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