KEGG moved the KO reaction from `DBLINKS`: `RN` to `REACTION`, so parser had to be updated to address this. Now, the reactions for a KO are returned as a list of tuples, like the pathways, formatted as `(<RN>, <reaction name>)` and are NOT nested within `DBLINKS`.
More detail/an example can be seen in AMON issue https://github.com/lozuponelab/AMON/issues/19 , which this partially addresses.