public org.apache.hadoop.hive.ql.io.protobuf.SampleProtos.Mesg1 getMessageType() {
        if (messageTypeBuilder_ == null) {
          return messageType_ == null ? org.apache.hadoop.hive.ql.io.protobuf.SampleProtos.Mesg1.getDefaultInstance() : messageType_;
        } else {
          return messageTypeBuilder_.getMessage();
        }
      }
<code>optional .Mesg1 messageType = 18;</code>
@return The messageType.
ql/src/gen/protobuf/gen-test/org/apache/hadoop/hive/ql/io/protobuf/SampleProtos.java