func HTTPHeader(s kingpin.Settings) (target *http.Header) { target = &http.Header{} s.SetValue((*HTTPHeaderValue)(target)) return }
func RoleArnOpt(s kingpin.Settings) (target *ec2metaproxy.RoleArn) { target = new(ec2metaproxy.RoleArn) s.SetValue((*RoleArnValue)(target)) return }