@java.lang.Override
    public boolean hasMessageType() {
      return ((bitField0_ & 0x00008000) != 0);
    }
<code>optional .Mesg1 messageType = 18;</code>
@return Whether the messageType field is set.
ql/src/gen/protobuf/gen-test/org/apache/hadoop/hive/ql/io/protobuf/SampleProtos.java