Maintenance: Is this project being maintained?

[mbana]

Trying to run the tool with this Swagger file:

https://github.com/OpenBankingUK/payment-initiation-api-spec/blob/master/dist/v1.1/payment-initiation-swagger.yaml

$ wget https://raw.githubusercontent.com/OpenBankingUK/payment-initiation-api-spec/master/dist/v1.1/payment-initiation-swagger.yaml > petstore.yml
$ docker run -it -v $(pwd):/testdata meqa/tag mqtag -i /testdata/petstore.yml -o /testdata/petstore_meqa.yml
loaded  /testdata/petstore.yml
Traceback (most recent call last):
  File "/usr/local/bin/mqtag", line 11, in <module>
    sys.exit(main())
  File "/usr/local/lib/python3.6/site-packages/tag.py", line 578, in main
    swagger.gather_words()
  File "/usr/local/lib/python3.6/site-packages/tag.py", line 550, in gather_words
    for name, obj in self.doc['definitions'].items():
  File "/usr/local/lib/python3.6/site-packages/ruamel/yaml/comments.py", line 702, in __getitem__
    return ordereddict.__getitem__(self, key)

It seems to fail.