public Builder clearTokenIdentifier() {
        tokenIdentifier_ = getDefaultInstance().getTokenIdentifier();
        bitField0_ = (bitField0_ & ~0x00000080);
        onChanged();
        return this;
      }
<pre>
The core vertex stuff 
</pre>

<code>optional string token_identifier = 8;</code>
@return This builder for chaining.
llap-common/src/gen/protobuf/gen-java/org/apache/hadoop/hive/llap/daemon/rpc/LlapDaemonProtocolProtos.java