So this has a custom MarshalJSON handler unfortunately https://github.com/juju/version/blob/377ed87d3b6cf452e60b7fc904386b53cc8eedff/version.go#L329
So this has a custom MarshalJSON handler unfortunately https:/ /github. com/juju/ version/ blob/377ed87d3b 6cf452e60b7fc90 4386b53cc8eedff /version. go#L329