Imports golang.org/x/net/context github.com/juju/usso gopkg.in/juju/environschema.v1/form gopkg.in/juju/environschema.v1 gopkg.in/macaroon-bakery.v2/httpbakery gopkg.in/errgo.v1 github.com/juju/httprequest Standard library imports encoding/json io/ioutil net/http net/url os path/filepath