public static org.apache.hadoop.hive.ql.io.protobuf.SampleProtos.MapFieldEntry getDefaultInstance() {
      return DEFAULT_INSTANCE;
    }
<code>optional string value = 2;</code>
@param value The bytes for value to set.
@return This builder for chaining.
ql/src/gen/protobuf/gen-test/org/apache/hadoop/hive/ql/io/protobuf/SampleProtos.java