Imports github.com/davecgh/go-spew/spew github.com/hashicorp/errwrap github.com/hashicorp/go-gcp-common/gcputil github.com/hashicorp/vault/sdk/helper/useragent golang.org/x/oauth2 golang.org/x/oauth2/google google.golang.org/api/iam/v1 google.golang.org/api/option Standard library imports bytes context crypto/sha256 encoding/json flag fmt io io/ioutil net/http os regexp time