public static org.apache.hadoop.hive.llap.daemon.rpc.LlapDaemonProtocolProtos.LlapOutputSocketInitMessage parseFrom(
        com.google.protobuf.ByteString data)
        throws com.google.protobuf.InvalidProtocolBufferException {
      return PARSER.parseFrom(data);
    }
<code>optional bytes token = 2;</code>
@return The token.
llap-common/src/gen/protobuf/gen-java/org/apache/hadoop/hive/llap/daemon/rpc/LlapDaemonProtocolProtos.java