@java.lang.Override
    public boolean hasKey() {
      return ((bitField0_ & 0x00000001) != 0);
    }
<code>optional string key = 1;</code>
@return Whether the key field is set.
llap-common/src/gen/protobuf/gen-java/org/apache/hadoop/hive/llap/daemon/rpc/LlapDaemonProtocolProtos.java