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The leonardo service uses openapi 3.0, but our software (currently) uses rapiclient, with a restriction to Swagger 2.0. The file in this directory was created using the LucyBot api-spec-converter from the command line.
On a macOS and following the README instructions on the git repository, I did
$ brew install npm
$ npm install -g api-spec-converter
and then ran the command
api-spec-converter -f openapi_3 -t swagger_2 \
https://api.firecloud.org/api-docs.yaml > \
api.yaml
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